Could you put a 1984 Rabbit transmission into a 1987 Golf?

Answer 1

Nope, different engines and different transmissions.

I do know for a fact that you can replace the fifth gear in a 1984 Rabbit GTI with the fifth gear from a 1985 Golf without even removing the transmission. How do I know this? I use to own a 1984 GTI and read that for better highway fuel economy and such the fifth gear from a 1985 Golf is taller making it so the engine runs at a much lower rpm. At 70 in fifth gear the engine screams at about 3500 to 4000 rpm on the 1984 GTI, with the simple change the rpm drops to about 1500. there is a access hole covered by a disk just behind the left front tire.