OS GIKEN PORSCHE LSD-GBOX Transmission

Contact

GBOX, INC.

455 YOUNG CT. UNIT 1

ERIE, CO.  80516

303-440-8899

GBOXINC@YAHOO.COM

Hours:

Mon-Fri > 8am - 5pm MTN.

Sat-Sun > By Appointment.

OS GIKEN LSD

GBox is now distributing the OS Giken limited-slip differential. OS Giken has been producing professional racing differentials since 1975. They are manufactured in Japan and made available here in the States through Toyota Tsushio America.

The Super Lock LSD is a patented revolutionary breakthrough in clutch-type limited-slip differential design that allows the differential to have twice as many friction plates compared to conventional designs (twice the plates of other currently available designs). This design enables 100% locking as well as unparalleled durability.

It features an innovative lock-timing system that under low or normal load conditions allows the differential to function as an open differential, however, once load is applied it smoothly transforms into a 100% locking diff (no more issues with turn-in).

As of June 1st 2010, all OS Giken differentials will have forged housings!

GBox offers a one-year warranty on OS Giken differentials purchased from and installed by us.

os giken limited-slip differential

The 915/930 LSD has 24 plates (12 per side), ramp angle is 25deg accel/28deg decel. The G50 LSD has 28 plates (14 per side), ramp angle is 25deg accel/39deg decel.

Chris Musante beats PCA Lime rock record:

Watch Chris Musante and his OS GIKEN Super Lock LSD equipped 1974 Porsche 911 RSR (3.6L naturally aspirated engine) beat the all-time PCA record at Lime Rock Park with a time of 54.953. Chris has commented that,"For road racing, OS Super Lock LSD's high percent lockup during deceleration allows deep and effective trail braking and better overall braking. On power exiting of corners is smooth and precise due to the increasing lockup percentage during acceleration. This makes for very fast and predictable corner exit."

OS Giken LSD Testimonials

OS Giken Differential Flyer:

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APPLICATIONS

- 915/930

- 968

- 964/Turbo

- 993/993TT/GT2/GT3

- 996TT/GT2/GT3

- BMW [Installation in a BMW 135i]

  • UNDER DEVELOPMENT:

  → CAYMAN and 944