diff leaking
 

my differential is leaking. not from the drain plug either. its leaking form the seal between the 2 halves.
this is my dd, so im thinking ill keep topping it off for now, its a slow leak...also my trannys going out.
i have a 91 n/a block in my car. i hope to go turbo soon but my engine is fine

but the question is.....

i know of a s5 turbo with everything but the block.
do i swap the tranny, driveshaft, diff, and halfs from said turbo

or find a gtus diff and tranny, and shoot for better acceleration?

im thinking if i go turbo stuffr, then when/if my block blows then a turbo swap is just a block and some wires away.
but id like the gtus stuff too...

you can buy a drive shaft made for the said swap at mazdatrix... turbo II tranny to N/a rear end ... but if you can get the tII rear end i would recommend it. its alot beefier and should take the abuse alot better