The OS Giken Super Lock LSD has been designed for high levels of durability and performance whilst still providing a comfortable driving experience.
Features
- Revolutionary Lock Timing Control System for smooth cornering even at low
- Provides smooth transition to full lock for maximum traction performance
- Designed for long life and durability, has been tested to run 150,000km
Spec-X
Can operate in 1, 1.5 or 2 Way configuration, time-locked and can be customized. Suitable for more serious track and off-road use.
Spec-S
Designed for sports car racing, gymkahana, 0-400m and can also be used on the streets. Available only in 1.5 Way RWD and 1.1 Way FWD.
Notes
- Toyota 8.5" Type (JZZ30 etc) Code D-TD102061405-S vehicles with OEM Torsen LSD requires LH/RH side shafts Toyota part number: 2x 41309-24020
- Optional Final Gear for EK9/DC2 no longer available
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
| Vehicle | Part | Type | Position | Price | Order |
|---|---|---|---|---|---|
| D-NB102061405-S | |||||
| Fairlady Z - 350Z - Z33 From Aug 2002, VQ35DE MT | Spec-S - OEM Viscous side shafts need to be changed | 1.5 Way | Rear | | |
| OSGIKEN-SLLSD-Z34AT | |||||
| Fairlady Z - 370Z - Z34 Dec 2008 – Oct 2019, AT - (later unconfirmed) | 1.5 Way | Rear | | ||
| D-NB102061405-S | |||||
| Fairlady Z - 370Z - Z34 From Dec 2008, MT | Spec-S - OEM Viscous side shafts need to be changed | 1.5 Way | Rear | | |
| D-NA102061405-S | |||||
| Silvia - S13 Jan 1991 – Dec 1998, RPS13/PS13 - SR20DET | Spec-S - Side Flanges must be replaced | 1.5 Way | Rear | | |
| D-NA202061405-S | |||||
| Silvia - S14 Nov 1993 – Dec 1998, SR20DET | Spec-S - Side Flanges must be replaced | 1.5 Way | Rear | | |
| D-NA402061405-S | |||||
| Silvia - S15 Jan 1999 – Jan 2002, SR20DET | Spec-S | 1.5 Way | Rear | | |
| D-NB102061405-S | |||||
| Skyline - V35 From Jan 2003, VQ35DE MT | Spec-S - OEM Viscous side shafts need to be changed | 1.5 Way | Rear | | |
| Vehicle | Part | Type | Position | Price | Order | |
|---|---|---|---|---|---|---|
| D-TC1FA20-S | ||||||
| 86 - ZN6 From Apr 2012 | Spec-S | 1.5 Way | Rear | | | |
| D-TB102081404-S | ||||||
| Altezza RS200 - SXE10 | Spec-S | 1.5 Way | Rear | | | |
| D-TB102081404-X | ||||||
| Altezza RS200 - SXE10 | Spec-X - Send Cam angle, Lock Timing and Initial Torque | | | |||
| D-TD102051605-S | ||||||
| Aristo - JZS147 | Spec-S | 1.5 Way | | | ||
| D-TD102051605-S | ||||||
| Aristo V300 - JZS161 | Spec-S | 1.5 Way | | | ||
| D-TD102051605-X | ||||||
| Aristo V300 - JZS161 Aug 1997 – Apr 2004, 2JZ-GTE | Spec-X | 2 Way | Rear | | | |
| D-TC102061405-S | ||||||
| Chaser - JZX90 | Spec-S | 1.5 Way | | | ||
| D-TC102061405-S | ||||||
| Chaser - JZX100 | Spec-S | 1.5 Way | | | ||
| D-TA202081604-S | ||||||
| Corolla Levin - AE86 May 1983 – Sep 1985 | Spec-S | 1.5 Way | | | ||
| D-TA102081604-S | ||||||
| Corolla Levin - AE86 Oct 1985 – Apr 1987 | Spec-S | 1.5 Way | | | ||
| D-TC1FA20-S | ||||||
| GR86 - ZN8 | Spec-S | 1.5 Way | Rear | | | |
| D-TC102061405-S | ||||||
| Mark 2 - JZX90 | Spec-S | 1.5 Way | | | ||
| D-TC102061405-S | ||||||
| Mark 2 - JZX100 | Spec-S | 1.5 Way | | | ||
| D-TC102061405-S | ||||||
| Mark 2 - JZX110 | Spec-S | 1.5 Way | | | ||
| D-TD102061405-S | ||||||
| Soarer 2.5GT-T - JZZ30 Jun 1991 – Aug 1996, 1JZ-GTE | Spec-S | 1.5 Way | | |||
| D-TD102061405-S | ||||||
| Soarer 3.0GT - JZZ31 Jun 1991 – Aug 1996, 2JZ-GE | Spec-S | 1.5 Way | | |||
| D-TD102061405-S | ||||||
| Soarer 4.0GT - UZZ30 Jun 1991 – Aug 1996, 1UZ-FE | Spec-S | 1.5 Way | | |||
| D-TA202081604-S | ||||||
| Sprinter Trueno - AE86 May 1983 – Sep 1985 | Spec-S | 1.5 Way | | | ||
| D-TA102081604-S | ||||||
| Sprinter Trueno - AE86 Oct 1985 – Apr 1987 | Spec-S | 1.5 Way | | | ||
| D-TC102061405-S | ||||||
| Supra A70 MKIII - JZA70 Aug 1990 – May 1993 | Spec-S | 1.5 Way | | | ||
| D-TD102061405-S | ||||||
| Supra A80 MKIV - JZA80 May 1993 – May 1996, 2JZ-GE/2JZ-GTE | Spec-S | 1.5 Way | | |||
| D-TG102061405-S | ||||||
| Supra A80 MKIV - JZA80 May 1993 – May 1996, 6MT with B03B differential | Spec S | 1.5 Way | Rear | | | |
| Vehicle | Part | Type | Position | Price | Order | ||
|---|---|---|---|---|---|---|---|
| D-HB101091401-S | |||||||
| Civic Type R - EK9 | Spec-S | 1.1 Way | Front | | | ||
| D-HC101091401-S | |||||||
| Civic Type R - FD2 | Spec-S | 1.1 Way | | | |||
| 91005-PPS-003 | |||||||
| Honda - Side Bearing, Differential Optional | |||||||
| D-HB101091401-S | |||||||
| Integra Type R - DC2 | Spec-S | 1.1 Way | Front | | | ||
| D-HC101091401-S | |||||||
| Integra Type R - DC5 K20A | Spec-S - Remove & replace speedometer gear | 1.1 Way | | ||||
| D-HA102081604-S | |||||||
| S2000 - AP1 | Spec-S | 1.5 Way | | | |||
| D-HA102081604-S | |||||||
| S2000 - AP2 | Spec-S | 1.5 Way | | | |||
| Vehicle | Part | Type | Price | Order | |
|---|---|---|---|---|---|
| D-MA202061404-S | |||||
| Eunos Roadster - NA8C | Spec-S | 1.5 Way | | | |
| D-MA202061404-X | |||||
| Eunos Roadster - NA8C | Spec-X | | | ||
| D-MA302061404-S | |||||
| Roadster - NCEC | Spec-S | 1.5 Way | | | |
| D-MA302061404-X | |||||
| Roadster - NCEC | Spec-X | | | ||
| OSG-SLLSD-S15-NDERCMT | |||||
| Roadster RF - NDERC 6MT | Spec-S | 1.5 Way | | | |
| D-MA102061405-S | |||||
| RX-7 - FC3S | Spec-S | 1.5 Way | | | |
| D-MA102061405-X | |||||
| RX-7 - FC3S | Spec-X | | | ||
| D-MA102061405-S | |||||
| RX-7 - FD3S | Spec-S | 1.5 Way | | ||
| D-MA102061405-X | |||||
| RX-7 - FD3S | Spec-X | | | ||
| D-MA102061405-S | |||||
| RX-8 - SE3P | Spec-S | 1.5 Way | | | |
| D-MA102061405-X | |||||
| RX-8 - SE3P | Spec-X | | | ||
| Vehicle | Part | Type | Position | Price | Order |
|---|---|---|---|---|---|
| D-TC1FA20-S | |||||
| BRZ - ZC6 From Apr 2012 | Spec-S | 1.5 Way | Rear | | |
| D-TC1FA20-S | |||||
| BRZ - ZD8 | Spec-S | 1.5 Way | Rear | | |
| D-SUA101081404-S | |||||
| Impreza WRX STI - GDB Oct 2000 – Sep 2007 | Spec-S | 1.1 Way | Front | | |
| D-SUB102061404 | |||||
| Impreza WRX STI - GDB Oct 2000 – Sep 2007 | Spec-S | 1.5 Way | Rear | | |
| D-SUA101081404-S | |||||
| Impreza WRX STI - GRB From Oct 2007 | Spec-S | 1.1 Way | Front | | |
| D-SUB102061404 | |||||
| Impreza WRX STI - GRB From Oct 2007 | Spec-S | 1.5 Way | Rear | | |
| Vehicle | Part | Type | Price | Order |
|---|---|---|---|---|
| OSG-SLLSD-S15-NF2EK | ||||
| ABARTH 124 Spider - NF2EK MT/AT | Spec-S | 1.5 Way | | |
| Part | Price | Order |
|---|---|---|
| D-HD102062004-SF4.4-5 | ||
| Includes 4.4 Final Gear Set | DISCONTINUED This part is no longer available | |
| D-HD102062004-SF4.4-6 | ||
| Includes 4.4 Final Gear Set | DISCONTINUED This part is no longer available | |
| D-HD102062004-SF | ||
| Includes ring gear for normal final gear | DISCONTINUED This part is no longer available | |
| D-HD102062004-SF | ||
| Includes ring gear for normal final gear | DISCONTINUED This part is no longer available | |
OS Giken was founded in 1973 in Okayama by Masaharu Okazaki as the Okazaki Speed Technology Research Institute, a tuning shop for cars and motorcycles. It became OS Giken Co., Ltd. in 1988. Okazaki built his own high-revving twin-cam engines, the TC16 and TC24-B1, and began making stronger drivetrain parts because stock ones could not take the power.
A Violet with a TC16-MA II won the 1980 All Japan All-Star Dirt Trial, and a 280Z with a TC24-B1 took third in its class at the 1982 SCCA Pro Rally in Nevada. OS Giken still makes clutches, limited-slip differentials and gearboxes, including the OS-FR7 7-speed sequential, from its base in Okayama.











