D52 Caliper Rear Disc Brake Brackets

[truckzilla]

If the D52 caliper fits early 80's C10s and C20s, any idea of why not the C30s?

[Captainfab]

Well I don't have any firsthand experience with the single wheel C30's, but with the dually C30's, they use a totally different caliper than the D52. It is much bigger and mounts differently.

Originally Posted by truckzilla

If the D52 caliper fits early 80's C10s and C20s, any idea of why not the C30s?

[madcow75]

What caliper is used with a C30 disc conversion. Want to keep e-brake type caliper. I will be also using 16" facory steel wheels

[truckzilla]

Thanks Capt'n! Any idea of a front brake improvement for the early '80s C30 duallys?

[Captainfab]

I haven't really dealt with the C30's, so I'm not sure. It is possible that you may have the smaller of the brakes available for the C30's. I do know that there were bigger drums available on some of the dually's in the rear, so maybe there is a bigger caliper available? Does your truck already have hydroboost?

Originally Posted by truckzilla

Thanks Capt'n! Any idea of a front brake improvement for the early '80s C30 duallys?

[madcow75]

Yes my truck allready has hydroboost. I have a 76 cc dually which I am converting to 4wd. I have read before about possible clearance issues with d-52 calipers with smaller wheels. Just trying to clear it up hopefully with someone with experience. I have heard about using a 2003 chevy express van rotors on the c30's instead of the 3/4 ton front rotors, with 1/4" spacers. I have a dana 70HD.

[Captainfab]

When converting to rear disc on any of the 8 hole differentials, you need to run at least 16" wheels. Otherwise you will need to do a bunch of grinding on the outside of the caliper. I'm only familar with the conversion using the '73+ K20 rotors. What is the advantage to the Express/Savana rotors? Are they a larger diameter?

Originally Posted by madcow75

Yes my truck allready has hydroboost. I have a 76 cc dually which I am converting to 4wd. I have read before about possible clearance issues with d-52 calipers with smaller wheels. Just trying to clear it up hopefully with someone with experience. I have heard about using a 2003 chevy express van rotors on the c30's instead of the 3/4 ton front rotors, with 1/4" spacers. I have a dana 70HD.

[Captainfab]

For a rear disc conversion on a C30, you will have to use the K20 front rotors and the '76-'78 Eldorado rear calipers with the e-brake

Originally Posted by madcow75

What caliper is used with a C30 disc conversion. Want to keep e-brake type caliper. I will be also using 16" facory steel wheels