Up for sale is my OS GIKEN OS88 sequential gearbox option 2.
It is brand new and still on the pallet and comes with crossmember to suit as well as direct shift kit.
Comes as a combo with NPC twin plate clutch custom built with billet flywheel.
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 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, but does require regular inspection to ensure trouble-free 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
Please contact us if you would like to choose one of the following "option" ratio sets ($900 extra):
Option 1: 2.609, 1.934, 1.521, 1.210, 1.000, 0.785
Option 2: 2.890, 1.981, 1.468, 1.174, 1.000, 0.757
Option 3: 2.516, 1.865, 1.468, 1.174, 1.000, 0.822
$20 500 for everything