matscooby

iTrader: (3)

Hi All,

I currently have a V2 STI 555 with a V2 STI RA Gearbox, like you can imagine, these gearbox's are not made for motorway's.

I want to put a longer 5th gear into the box so that I can travel abit at ease on lengthy journeys but also have the fun factor when I need it.

What would be my options please ??

Cheers
Matt

scooblube

5th gear from a UK car will do the job but the drop off will be bl@@dy awful.

matscooby

iTrader: (3)

I had thought about the UK 5th but that drop off is whats scaring me away from it.

What about changing 4th and 5th, would that work ??

172sport

iTrader: (6)

5th gear is easy to change with a bit of mechanical knowledge.

I wouldnt do it though as the drive is rubbish, i built a good box out of 2 bad ones using an RA gear set and a wrx 5th (not as long as a uk 5th btw), the drop off to 5th was appalling, so much so it was sold after only a month in the car.

If you want a good balance i dont think you can go wrong with std wrx gearing. But in your case i reckon you would have to change the rear diff to get a decent selection of 2nd hand boxes.

GearHack: Subaru Transmission Chart

2ndgear

i have a few different 5th gear sets if you let me know what is in yours now and i will see what i have

matscooby

iTrader: (3)

Well I've decided to upgrade to a 4.444 rear diff and get a V4 STI RA box instead.

Though there is one thing I need to find out, will the 4.444 rear diff slot into the same holes on the rear subframe as the 3.9 ??