I have a 84 rabbit gti Canadian and just picked up a 86 cabriolet German karmen can you use the tranny from the cabriolet in the rabbit let alone what about the rest of the car you?

The real answer is YES. The German transaxle will be a bolt in affair as long as both trannies are 5 speeds. If the Canook one is a 4 spd, then you would need the shift mechanism from the Cabby. It is still a bolt in affair.