Subaru STI six-speed gearbox
- Type
- Subaru STI six-speed manual
- Fitted
- Before the Narooma Forest Rally, June 2026
- Fits
- GF8
- Surface
- Gravel / rally, Tarmac / track
Want this, or something like it?
We can’t take an order yet — supply is still being arranged. Ask, and we will tell you what we know about it and let you know when it is available. What people ask for is what we range first.
Fitment is confirmed, not guessed
A chassis is listed only where the part is on one of our cars or on the manufacturer’s own application list.
Some of this is on our cars
Parts marked On our cars are ones we race. Those descriptions are written from running them, not from a brochure.
A person answers
Enquiries go to Michael, who races the cars. Tell us the car and what you are trying to fix.
Not a shop yet — no prices and no checkout. How this catalogue works
About this part
The six-speed that went into the wagon for its ARC debut, with fresh front and rear diffs.
The 1995 GF8 wagon ran most of the first half of 2026 on its original driveline and a clutch with about ten millimetres of bite. For the step up to the Australian Rally Championship at Narooma it got the six-speed and fresh differentials at both ends. The difference was immediately measurable rather than a feeling: second passes through the same stages were consistently quicker than the first, on a car and a driver that had not changed. It is the single upgrade we would point any classic-class Subaru at first.
Specifications
- Type
- Subaru STI six-speed manual
- Fitted
- Before the Narooma Forest Rally, June 2026
On our cars
This is fitted right now. The description above is written from running it.
Fitment
Subaru Impreza, with the appropriate crossmember and driveline work. Confirmed for the chassis below — we list one only where the part is on one of our cars or on the manufacturer’s application list.
Before you buy
Why a GDB needs a 3.545 rear diff
The final drive has to match the transfer gear, or the centre diff destroys itself. The arithmetic, and how to read it off a listing.
Reading Subaru STI six-speed gearbox numbers
What TY856 codes and 32000A assembly numbers tell you about generation, DCCD and front LSD — and when they contradict the listing.
Buying used drivetrain parts sight-unseen
What a listing has to state before it is safe to bid, why clutch-type beats helical on stage, and the Japanese terms that carry the real information.