Pontiac Disk Brake conversion

[DAK]

I started doing this research after reading this statement from Tobin of KORE3..but couldn't find much else:

"it makes a difference if you're working with a BOP 10/12-bolt with positively retained axles versus a 10/12-bolt with c-clips. The center hole on the LS1 backing plates is 72mm [2.835"] and the BOP axle bearing has only a 2.75" outside diameter. What this means is that you'll need to machine a spacer to go between your original retainer (assuming it can move outward on the axle far enough) or machine your own retainer. Anything that isn't an open "C" profile or two pieces will require the removal of the axle bearings for installation."

Yrs ago I've done a S-10/Blazer swap on an a-body olds rear. No special machining or spacers or bearing removal required. Bearing retainer was cut so it could be removed from the axle. There are spacers needed to take up the space of the drum backing plate and the disc mounting plate bolts on the outside of the bearing retainer.



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