mk1 golf gti gearbox fit mk2 gti?

hi

will a mk1 gti gearbox fit a mk2 gti engine?

cheers

Its a bit too general to ask that - there's several different variations in them.

There's 2 issues: 1 the Mk2 uses a different transmission mount, so the gearbox needs different studs (locations) to mount to - many earlier gearboxes do have these though so its not a big issue.

2 the starter motor on later Mk2s has 3 hole fitment, whereas the mk1 has 2 hole fitment. Its not an issue fitting a mk2 starter to a mk1 because one of the holes is unused and the other 2 line up fine, but it will be an issue if only 2/3 of the mounts the starter motor has, are taken up. Its only a minor issue though.

Also bear in mind you'll need to get the CVJ flange size right, and the reverse switch should be the same type, especially if the car has an MFA (if it doesn't, then you can adapt the bigger rectangular switch to the older non-MFA wiring).

The guide on the left should be able to help you out, if you interpret it properly - it was written as a guide to fitting mk2 boxes to mk1, etc.

its only the starter that differs on mk2, not the gearbox. so the box itself fits fine you just put a mk2 starter with the extra hole in, done. as above though check at the back to make sure the holes required by the mk2 rear bracket are there, plus flange size as mk2 gti all are 100mm and mk1 are 90mm up till the later cabrio/scirocco 1.8.

unless what you wanted to know is if you could fit a mk2 engine block into your mk1 with a mk1 gearbox, in that case answer is yes

loads of 020 info here including flange size/swap, rear mounts and mfa gearbox sender adaption for later cars:
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