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OS Giken Super Lock LSD 2007-2008 Nissan 350Z / 2009+ 370Z (MT Only)

OS Giken Super Lock LSD 2007-2008 Nissan 350Z / 2009+ 370Z (MT Only)

by OS Giken
SKU osgNS112-HA
$1,520.00 - $1,520.00
$1,520.00
$1,520.00
$1,520.00 - $1,520.00
$1,520.00
  Lease to own   Pay as low as   $/week

The OS Giken Super Lock LSD uses our patented pressure ring design that allows for smooth, progressive locking. This design is a spline-through-side-gear design that allows for fitment of more friction plates. (up to 2x as many as competitors versions)

Details:

PRESSURE RING
Our revolutionary pressure ring houses our patented lock timing system, where springs work in opposition of torque being applied to the LSD. This results in a progressive, smooth, and quiet operation of the clutch discs within the differential. Furthermore, by modifying the spring rate, the rate of which the differential reaches full lock can be adjusted to suit particular vehicle settings and racing styles.

CAM ANGLE
Unlike other manufacturers that utilize modular components, we produce our cams and pressure rings as matching sets. Because the faces of the cams are grounded exactly to match the application area of the pressure ring, torque transfer is smooth and consistent throughout the lock range.


GEARS
The unique “spline-through” side gears allows our LSD to house more clutch discs than other competitors. Also, due to the relatively large size, it provides superior durability and torque transfer.
Clutch Discs

CLUTCH DISCS
The discs are precision-machined simultaneously on both sides to extremely tight tolerances to reduce flatness deviations and to eliminate the need to perform the tedious “figure 8” break-in period. By using as much as twice as many clutch discs than competing brands, our differential provides superior torque hold, while also reducing the “clunkiness” of traditional clutch-type LSDs. This also results in enhanced durability and reduced wear as torque hold is spread out over a higher amount of friction surfaces.

CASE
The case and all components are constructed from a high-grade steel alloy, and then chemically heat treated for increased durability. The extra rigidity created ensures that the internal components stay within their tight tolerances, allowing the differential to function with watch-like precision.

  • 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.
  • The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability. Operation is quiet and the progressive locking allows for smooth predictable locking. When replacing an open diff, equipping an OS LSD will completely improve the driving experience while maintaining everyday drivability.

Fitment Details: Please Read Carefully

For Nissan Z33 350Z fitment, please confirm vehicle is equipped with OEM Nissan PN:38220-AR000 x2

  • Nissan 350Z - VQ35DE/HR (Non-LSD; internal circlip type)
  • Nissan 370Z - VQ37HR (Non-LSD; internal circlip type)

For Nissan Z34 370Z fitment, please confirm vehicle is equipped with either:

  • Nissan PN:38220-EG000 x2 (Non-threaded flange holes type)
  • Nissan PN:38220-1NC0A x2 (Threaded flange holes type)

 

Specifications:

  • Ramps - 25/38
  • Lock Timing - 336
  • Total Plates - 20
  • Preload - 12S

Installation Notes:

  • Refer to OEM Service Manual for install