I have an 86 fiero and I’m looking to changing my stock bolt pattern to 5x120. I did a search and I see people have change bearing but they didn’t post from what donor. I know 88s can be redrill. So what’s is the best way without breaking the bank to making front and rear 5x120 also I’m looking to upgrade brakes to 13” rotors. I was looking at the c5 rotors
For the rear they swapped the HD pontiac 6000 or dustbuster minivan uprights and modified them to accept the S10 4x4 front wheel bearing.
Neither is a bolt-on solution.
For the rear, the A-body or U-body uprights can be drilled and spot-faced to accept C7 Corvette rear bearings using 33 spline outer CV joints commonly used on Dustbuster minivans and other large GM cars. Not a bolt-in in that the uprights have to be modified, but that can be done on a bench and then everything else bolts together.
The latest Dustbuster uprights accept the same 11x1.25" rotors and calipers as the LT1 fourth generation F-bodies.
[This message has been edited by Will (edited 01-26-2021).]
msweldon
JAN 26, 10:19 AM
Will, when are you going to finish your CAD design of the 88 rear uprights?
