1972 six lug rotor

[bonestock72]

Hey, doe's anybody know if there's a six lug standard rotor that will fit a 72' disk brake front end without modification? Thanks,Ken

[jocko]

Stock for K5/K10 only. Other half tons were all 5 lug starting in 71.

[bonestock72]

Thanks, Ken.

[lolife99]

Aftermarket 6-lug rotors are a direct replacement of your 5-lug rotor . Search 6-lug disc brake swap.

[bonestock72]

OK Keith, Thanks for the heads up, Ken

[lolife99]

https://www.summitracing.com/parts/c...MobileSwitchNo

[46stude]

Originally Posted by lolife99

https://www.summitracing.com/parts/c...MobileSwitchNo

Originally Posted by Summit

Question:
I have a 1974 c/10 front suspension will these rotors direct fit? I want to keep the 6 bolt look.
Asked by GREG on February 13, 2017
Answer:
Thank you for your question. Classic Performance CR-6P Upgraded Disc Conversion Rotors are replacement rotors for a Classic Performance disc brake conversion kit. These will fit stock disc brake spindles on heavy half ton applications with 1.25 thick by twelve inch factory six lug rotors and fifteen inch wheels from 1971 to 1987. This kit will not fit applications with factory five lug rotors, the calipers and spindle mounts for the calipers are not compatible.

Or not?

[bonestock72]

Thanks again Keith and 46 Stude. So it looks like if I were able to find suspension off of a 73' onward RWD with six lugs that would work as well?

[Daves70]

Yup. It'll work. I used 1982 spindles with those 6 bolt rotors and it worked great.

[bonestock72]

Daves70,You put 82' spindles on a 72' disc brake front end and it worked? Ken

[lolife99]

Originally Posted by 46stude

Or not?

Originally Posted by bonestock72

Thanks again Keith and 46 Stude. So it looks like if I were able to find suspension off of a 73' onward RWD with six lugs that would work as well?

These rotors fit any truck from 71-87 that came with 1-1/4" HD rotors. Not the 81-87 1" light duty rotors. That statement from CPP is in regards to 5-lug 88-98 trucks. They are totally different.

CPP customer service has to be the worst in the automotive business.
They make some good stuff, but I swear no one there knows what's going on.
I posted those rotors because they are the cheapest.

Call www.earlyclassic.com if you want to talk to truck guys. They sell these rotors too.

[lolife99]

The only 73-87 oem 6-lugs were 4x4 trucks.
Straight axle front ends.
Totally different.
There were no oem 2wd 6-lug trucks

[bonestock72]

OK then you just saved me a lot of time looking for one. So the only thing in existence is aftermarket? Ken

[lolife99]

Originally Posted by bonestock72

OK then you just saved me a lot of time looking for one. So the only thing in existence is aftermarket? Ken

Yes.
It's actually the same rotor blank used to make 5-lug rotors. The aftermarket industry saw the need for 6-lug disc brakes and manufactured the same rotors with the 6-lug pattern.
I bought my first set from www.earlyclassic.com for a 69 c10 I converted to disc brakes.
Now I see a lot of people using these rotors to use 6-lug wheels on 71-87 trucks.

[bonestock72]

Originally Posted by lolife99

Yes.
It's actually the same rotor blank used to make 5-lug rotors. The aftermarket industry saw the need for 6-lug disc brakes and manufactured the same rotors with the 6-lug pattern.
I bought my first set from www.earlyclassic.com for a 69 c10 I converted to disc brakes.
Now I see a lot of people using these rotors to use 6-lug wheels on 71-87 trucks.

Extremely good to know. Will the stock calipers work? It seems like they would but, since you've already done this, you'd know for sure

[lolife99]

Originally Posted by bonestock72

Extremely good to know. Will the stock calipers work? It seems like they would but, since you've already done this, you'd know for sure

Yes.
The only application that won't fit, is the odd ball 1" rotor/spindle trucks built between 81-87. These were usually plain jane 6-cylinder trucks.
Most v-8 trucks had the 1.25" rotors.

The aftermarket 6-lug rotors are 1.25" thick.
So all associated spindles, calipers, and bearings work with these.