18t conversion driveshaft aug ?

Hi all

Im so proud to get me mate a 1983 golf 1.1
converted 18t aug engine

my problem is what driveshaft will be correct for gearbox .i believe it would be a gti gearbox.

could i ask for some info please

were are the engine numbers located please

also if gti box 18t please which driveshaft nrside length to replace failed on car. how we got it..

1983 shell
oncoilovers
aug 18t engine

8z19047 some thing on gearbox ,,sorry i am not at car atm.

many thanks for letting me join,.

and thanks if you can enlighten me..

it is my mates fave car from teens.