So I think I need early gti clocks? How will I make the speedo and rev counter work?
You need GTI clocks with the same plugs as yours.
Speedo plugs in using 020 drive cable IIRC
Re-counter - odds on there'll be the wire from the coil to the binnacle that powers the tacho. You'll need to wire that in to the ABF coil.
So I think I Im useing the abf gearbox and it has an electric plug near the diff. Will this need changeing if so what for?
Undo the electronic fitting and you'll find the mechanical drive speedo cable screws in to replace it.
Pluss what happens when my car goes from haveing 75 thousand on it to what ever the new clocks will say?
No one will give a f*ck.