nIsMo_PoWeR

i have the same problem...im swaping a manuel 87na into a auto 86 turbo...im using the whole engine from the 87 and trans with the 86 turbo and bought a 87 manuel trans ecu...i got everything on but the driveshaft flange at the differential dont fit...okay so my question is will the 87 diff fit on the 86 axles...cause om going to change the diff from the 87 to the 86 and want to know if it will plug up??? thanks

Madmaxfl

Why not just change the companion flange?

nIsMo_PoWeR

how exactly do i do that???i tried but it is hard as f**k to get it off???

Madmaxfl

You need an impact wrench

nIsMo_PoWeR

i got one but the shit wont budge...have u tried it...did it work???

Madmaxfl

No my companion flanges matched so i did not need to change it. If you have the rear diff out and seperate from the car take to a shop and see if they can break it loose with their impact