correct 10" rear drums for 8 3/4 in 71..

Posted By: mopars_1

correct 10" rear drums for 8 3/4 in 71.. - 03/07/12 04:55 AM

just wondering what the correct rear drums would look like for a 71 roadrunner with 10.5" brakes on an 8 3/4? I have one that the outer surface is smooth and one thats finned. also, are there any good aftermarket ones that are pretty close to oem? thanks!
-kevin

Posted By: Morty426

Re: correct 10.5" rear drums for 8 3/4 in 71.. - 03/07/12 05:25 PM

Kevin,

The drum is measured by it's inside diameter and would be 10 inches. It should be smooth - not finned.

Morty

Posted By: mopars_1

Re: correct 10.5" rear drums for 8 3/4 in 71.. - 03/07/12 07:13 PM

Quote:

Kevin,

The drum is measured by it's inside diameter and would be 10 inches. It should be smooth - not finned.

Morty

alright. is there any aftermarket that looks oem? or is my best bet finding a good original pair? thanks!
-kevin

I changed the title so I dont confuse anyone

Posted By: JohnRR

Re: correct 10.5" rear drums for 8 3/4 in 71.. - 03/07/12 09:32 PM

Current aftermarket should be smooth, I bought a set of Wagners a number of years back and they are smooth on the outside, now ???

Posted By: Challenger 1

Re: correct 10" rear drums for 8 3/4 in 71.. - 03/07/12 09:49 PM

I believe the 10" drums are smooth and the 11" are finned. At least that has been my experience.

Posted By: mopars_1

Re: correct 10" rear drums for 8 3/4 in 71.. - 03/07/12 10:19 PM

looking at ebay and other misc parts stores with pictures, they appear to be smooth. maybe aftermarket is my best bet?

Posted By: a12rag

Re: correct 10" rear drums for 8 3/4 in 71.. - 03/08/12 12:12 AM

Think that the finned drums were the Heavy Duty brake option from the factory. They have more meat to them, and have the fins for helping to cool the drum. If I could find them, that is what I would use on my 70 B Body with 10x2.5" drums on the back. That was what came on the car.

Posted By: moparmarks

Re: correct 10" rear drums for 8 3/4 in 71.. - 03/08/12 02:49 AM

Quote:

I believe the 10" drums are smooth and the 11" are finned. At least that has been my experience.

Looking at my pallet of brakes and whats been on all my 71B, I would agree.

Posted By: shakerjoe

Re: correct 10" rear drums for 8 3/4 in 71.. - 03/08/12 03:01 AM

11"ers on the back of my cuda

Attached picture 7108406-joescudadrum2.jpg

Posted By: burdar

Re: correct 10" rear drums for 8 3/4 in 71.. - 03/08/12 04:38 AM

I've been looking at parts store replacement drums and I havn't found a correct looking one yet. One of them I had ordered had CHINA cast into the front face of the drum. It would have been visable through the wheel.

This one had a lip around the center hole which my originals don't have. The wheel probably wouldn't bolt up with that lip there. The drums were a lot wider then stock too. I'll be cleaning up my original ones.