Cusco Type MZ 1 1/2 Way LSD Mazda Miata NA / NB

Description

Type MZ LSD; 1.5Way

Cusco Type RS 1 1/2 Way LSD Mazda Miata NA / NB

Description

Type RS LSD; 1.5Way

The Cusco Type RS LSD had proved to be capable of competition use in the All Japan Gymkhana Championship without overhauling a single time during the season. With all drivers and teams finishing with good or championship results at the end of the season. According to Cusco's in house research, initial torque is 50 to 70% lower compared to the conventional cone plate type LSD enabling lower drive friction and better response. * Low power loss means better lap times for even the mild tuned of cars * Chattering is kept low * Improved durability as clutch plates are low pressured * The LSD efficiency is higher with smoother oil flow between plates. * Special precision springs, set in the pressure plate, assure steady coil movement * Clutch plates do not stick together like conventional cone plate type LSDs. Therefore less clutch plate wear or deterioration occurs. There are three ways to set your Cusco Limited Slip Differentials: 1 way, 1.5 way and 2 way. * 1 way LSD: Specially suited for front wheel drive cars and AWD front axle cars. Activates under acceleration, and acts as a true LSD when the throttle is off. This CUSCO 1 way LSD will improve lap times without a doubt. * 1.5 way LSD: Activates under acceleration while the under-steer under deceleration is less than on a 2 way LSD. Recommended for those who have a hard time with under-steer. * Two way LSD: Recommended on rear wheel drive cars and AWD rear axle cars. Activates on both acceleration and deceleration. Recommended for those who prefer aggressive driving and big angle drifting.

Cusco Type RS 1 1/2 Way LSD Mazda Miata NC (2006-2015)

Description

Type RS LSD; 1.5Way

Cusco Type RS 2 Way LSD Mazda Miata NA (9/89-9/93)

The Cusco Type RS LSD had proved to be capable of competition use in the All Japan Gymkhana Championship without overhauling a single time during the season. With all drivers and teams finishing with good or championship results at the end of the season. According to Cusco's in house research, initial torque is 50 to 70% lower compared to the conventional cone plate type LSD enabling lower drive friction and better response. * Low power loss means better lap times for even the mild tuned of cars * Chattering is kept low * Improved durability as clutch plates are low pressured * The LSD efficiency is higher with smoother oil flow between plates. * Special precision springs, set in the pressure plate, assure steady coil movement * Clutch plates do not stick together like conventional cone plate type LSDs. Therefore less clutch plate wear or deterioration occurs. There are three ways to set your Cusco Limited Slip Differentials: 1 way, 1.5 way and 2 way. * 1 way LSD: Specially suited for front wheel drive cars and AWD front axle cars. Activates under acceleration, and acts as a true LSD when the throttle is off. This CUSCO 1 way LSD will improve lap times without a doubt. * 1.5 way LSD: Activates under acceleration while the under-steer under deceleration is less than on a 2 way LSD. Recommended for those who have a hard time with under-steer. * Two way LSD: Recommended on rear wheel drive cars and AWD rear axle cars. Activates on both acceleration and deceleration. Recommended for those who prefer aggressive driving and big angle drifting.

OS Giken 6 Speed Close Ratio Gear Set Nissan 350Z / G35 Z33 VQ35DE

Performance driving and high output engines puts strain on the drivetrain and can sometimes lead to failing components, such as broken gears or input shafts. The goal of the OS Giken Close Ratio Gear Kit is to reinforce the transmission internal components while maximizing an engine’s potential by providing custom gear ratios for performance driving. Each OS Giken gear component is designed and created from high-quality forged materials, and then undergoes hard shot peening, resulting in increased strength and durability. Furthermore, the gears are helical-cut, rather than straight-cut, to maintain a quiet and smooth operation, accomplishing full comfort for street driving as well as reliability for racing.

OS Giken Alteration Fork Conversion Kit Nissan 350Z / 370Z / Infiniti G35 / G37 VQ35HR / VQ37VHR

Description

Clutch Alteration Fork Conversion Kit; Requires OEM Nissan Parts

OS Giken Spec-S R160 Super Lock LSD Datsun 510 / Bluebird H510 / P510

Description

Super Lock LSD; Spec-S

OS Giken Super Lock Spec S LSD Datsun Fairlady Roadster SRL311 (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance.

OS Giken Super Lock Spec S LSD Nissan Sentra SE-R Spec V B15 QR25DE

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Datsun 240Z S30 (R180 115mm Ring Gear ID)

OS Giken Super Lock Spec-S LSD Mazda Miata NA / NB / RX-7 SA / FB / FC (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Mazda Miata NC (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Mazda RX-7 Turbo / RX-8 (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Mazdaspeed 3 (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Mazdaspeed 3 (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Mazdaspeed Miata (MT Only)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.

OS Giken Super Lock Spec-S LSD Nissan 240SX S13 / S14 KA24DE (MT Only)

Description

Super Lock LSD; Spec-S; Side Flanges May Need Replacement

OS Giken Super Lock Spec-S LSD Nissan 350Z / 370Z Z33 VQ35 / VQ37 (MT Only)

Description

Super Lock LSD; Spec-S; Side Flanges May Need Replacement, Call for Details

OS Giken Super Lock Spec-S LSD Nissan 350Z Z33 VQ35DE (MT Only)

Description

Super Lock LSD; Spec-S; Side Flanges May Need Replacement

OS Giken Super Lock TCD LSD Nissan GT-R R35 (TCD Rear)

The OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. *Superior Design* * Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability. * Patented pressure ring design allows for smooth, progressive locking * LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability. *Superior Construction* * All components are chemically heat treated for maximum durability * All components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength * Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage. * LSD case is machined from a single billet piece to ensure uniformity. *Superior Overall Performance* * The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns / street driving, but can still transmit maximum power to the drive wheels under load. * Operation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability. * Due to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available. * Aside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road/weather conditions, allowing for a safer driving experience. *Tunability* * Initial torque can be adjusted by using thicker / thinner cone springs * Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver. * Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities. * TCD spec disks can be installed for increased oil cooling and even smoother operation. *Super Lock LSD – Spec X* For vehicles that are heavily modified or are particpating in specific forms of motorsports, we offer the Spec-X LSD. The custom order Spec-X is available in 1-way, 1.5-way, and 2-way configurations and can be made with custom cam angles, lock timing, and initial torque settings. *Traction Control Differential (TCD)* The innovative TCD system uses specialized oil channels and pathways to provide maximum oil flow and minimal noise, resulting in exceptionally smooth locking.