Your trusted source of JDM parts shipped direct from Japan

Your trusted source of JDM parts shipped from Japan

JDM parts shipped direct from Japan

United States / USD
Select your country and currency for personalised pricing & shipping options: Select to personalise your pricing & shipping options: Your country & currency:

OS Giken Gearbox

The OS Giken OS-88 gearbox is a sequential 6-speed gearbox

The OS Giken OS-88 gearbox is a sequential 6-speed gearbox designed to suit the BNR32 and BCNR33 GT-R.

It can also be used in the BNR34 but will require an R33 transfer case and  front prop shaft.
It bolts up to the Nissan transfer case and has a bellhousing to suit any RB engine.
It also comes complete with shifter, digital shift indicator and pull-up reverse lock-out sleeve.

  • OS-88 Sequential Transmission - made to order 3months.
  • OS-88 Transmission Member - made to order 3months. Optional
  • Note : OS-88 is not included a Transfer (Red circle of the picture)
  • Includes shift indicator and the shifter

Instruction for BNR34.
1. The Transfer is used with for BCNR33.  33100-23U00 - Nissan OEM Transfer 
2. The Speed Meter Gear Unit is used with for BNR34
3. The propeller shaft is used with for BCNR33
37300-24U00 - Propeller Shaft Front 
37200-05U00 - Propeller Shaft Rear
4. Clutch disc is used with exclusive product.
5. Clutch Sleeve and Bearing is used with exclusive product
6. Need to change Pull to Push. Then needs the following parts.
30620-21U01 - Nissan OEM Operating Cylinder 
30531-01S00 - Nissan OEM Release Fork 
30534-E9000 - Nissan OEM Pivot Spring 
30514-14600 - Nissan OEM Sleeve Spring 


OS Giken designed this sequential gearbox to handle 1500hp, while retaining quiet helical-cut gears.
To do this the gear axis has been increased to 88mm, while most internal parts are forged.
The dog-engagement of the gears allows extremely fast shifting operation.This gearbox comes with the following gear ratios:

1st 2.609
2nd 1.934
3rd 1.521
4th 1.210
5th 1.000
6th 0.852

Vehicle Product   Price Order
Skyline - R32 GTR - BNR32
13 - Indicator Unit, 18 - Connect Cable, 19 - Black Box, 20 - Sensor Cable + Indicator Kit
OS-88 Kit
USD $ 984.31
Skyline - R32 GTR - BNR32
Nissan Skyline BNR32 RB26DETT - 1X Transmission, 1 X Trans member, 1 X OS Clutch Kit R3C for BNR32 with Sleeve Bearing, 1 X shift indicator and the shifter, OEM normal transfer not included
BNR32 OS-88 Sequential Transmission
USD $ 17,498.80
Skyline - R33 GTR - BCNR33
13 - Indicator Unit, 18 - Connect Cable, 19 - Black Box, 20 - Sensor Cable + Indicator Kit
OS-88 Kit
USD $ 984.31
Skyline - R34 GTR - BNR34
13 - Indicator Unit, 18 - Connect Cable, 19 - Black Box, 20 - Sensor Cable + Indicator Kit
OS-88 Kit
USD $ 984.31
Skyline - R34 GTR - BNR34
Clutch Sleeve and Bearing
OS CSB
USD $ 96.24
Skyline - R34 GTR - BNR34
Nissan OEM Operating Cylinder
30620-21U01
USD $ 61.80
Skyline - R34 GTR - BNR34
Nissan OEM Pivot Spring
30534-E9000
USD $ 6.54
Skyline - R34 GTR - BNR34
Nissan OEM Release Fork
30531-01S00
USD $ 23.31
Skyline - R34 GTR - BNR34
Nissan OEM Sleeve Spring
30514-14600
USD $ 6.99
Skyline - R34 GTR - BNR34
Nissan OEM Transfer
33100-23U00
USD $ 2,329.53
Skyline - R34 GTR - BNR34
Propeller Shaft Front
37300-24U00
USD $ 1,104.62
Skyline - R34 GTR - BNR34
Propeller Shaft Rear
37200-05U00
USD $ 1,323.35
Skyline - R34 GTR - BNR34
Sequential Transmission
OS-88 Sequential Transmission
USD $ 12,249.16
Skyline - R34 GTR - BNR34
Transmission Member
OS-88 Sequential Transmission
USD $ 546.84
Product   Order
Skyline - R32 GTR - BNR32
13 - Indicator Unit, 18 - Connect Cable, 19 - Black Box, 20 - Sensor Cable + Indicator Kit
OS-88 Kit
USD $ 984.31
Skyline - R32 GTR - BNR32
Nissan Skyline BNR32 RB26DETT - 1X Transmission, 1 X Trans member, 1 X OS Clutch Kit R3C for BNR32 with Sleeve Bearing, 1 X shift indicator and the shifter, OEM normal transfer not included
BNR32 OS-88 Sequential Transmission
USD $ 17,498.80
Skyline - R33 GTR - BCNR33
13 - Indicator Unit, 18 - Connect Cable, 19 - Black Box, 20 - Sensor Cable + Indicator Kit
OS-88 Kit
USD $ 984.31
Skyline - R34 GTR - BNR34
13 - Indicator Unit, 18 - Connect Cable, 19 - Black Box, 20 - Sensor Cable + Indicator Kit
OS-88 Kit
USD $ 984.31
Skyline - R34 GTR - BNR34
Clutch Sleeve and Bearing
OS CSB
USD $ 96.24
Skyline - R34 GTR - BNR34
Nissan OEM Operating Cylinder
30620-21U01
USD $ 61.80
Skyline - R34 GTR - BNR34
Nissan OEM Pivot Spring
30534-E9000
USD $ 6.54
Skyline - R34 GTR - BNR34
Nissan OEM Release Fork
30531-01S00
USD $ 23.31
Skyline - R34 GTR - BNR34
Nissan OEM Sleeve Spring
30514-14600
USD $ 6.99
Skyline - R34 GTR - BNR34
Nissan OEM Transfer
33100-23U00
USD $ 2,329.53
Skyline - R34 GTR - BNR34
Propeller Shaft Front
37300-24U00
USD $ 1,104.62
Skyline - R34 GTR - BNR34
Propeller Shaft Rear
37200-05U00
USD $ 1,323.35
Skyline - R34 GTR - BNR34
Sequential Transmission
OS-88 Sequential Transmission
USD $ 12,249.16
Skyline - R34 GTR - BNR34
Transmission Member
OS-88 Sequential Transmission
USD $ 546.84
Best Price Guarantee
If you're able to find a better price we'll beat it, all fees included.

Associated JDM Parts

APEXi - AVC-R

APEXiAVC-R

USD $ 447.93
APEXi - Exhaust Control Valve

APEXiExhaust Control Valve

from USD $ 50.97
Aragosta - Type S Suspension

AragostaType S Suspension

from USD $ 2,107.46
ATS - Carbon Clutch

ATSCarbon Clutch

from USD $ 118.72
Bee R - Rev Limiter

Bee RRev Limiter

from USD $ 217.40
Blitz - Damper ZZ-R - Nissan

BlitzDamper ZZ-R - Nissan

from USD $ 856.91

About Nengun Performance

Since the year 2000, Nengun Performance has supplied over 100,000 parts direct from Fukuoka, Japan to 150 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.

Nengun Performance, shipping JDM direct from Japan