8-3/4 SBP to BBP swap.

[chrispy1971gtx]

I was thinking of just going ahead and doing the 10" drum to disc swap on my 69 340 Swinger.

I was thinking of Dr. Diff or scarebird, not sure which at this time. But for sure, doing a Dr. Diff rear axle swap. About 300 for new axles on a 5 on 4.5 BP.

My question is:

What do I do about the drums/backing plates? Do I keep the original backing plates and can put just slip on a new b-body or a-body BBP drum? Or do I need to switch the brake hardware and liners to the wider B-body system?

I have a 70 B-body 8-3/4 with the drums and plates already on it...can I just swap them on?

Thanks
Chris

 

[doug 371]

yes...use ur b body backing plates and drums etc

 

[MuuMuu101]

If you want to go with disc brakes, don't even bother with the drums as you'll have to take off the axles anyways to install the new brake kit. I installed Dr Diffs axles and 11.7" brake kit and it went together really well. Car is still not running but I've always liked Dr Diff's parts.

 

[chrispy1971gtx]

Thats a neat rear disc swap, but I want to keep the drums in the back and will go with disc in the front. Wanting to keep 14's and old school 60s/70s school.

 

[Darter6]

Dr Diff also sales 10x21/2 rear set up that includes the drums backing plates shoes and all the hardware assembled to the backing plates for around $350 for the pair.