all rear guru's please read............. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

QKENUF4U · 07-23-2006, 11:18 AM

http://67-72chevytrucks.com/vboard/s...92#post1764092

dwcsr · 07-23-2006, 01:05 PM

So whats your question?

QKENUF4U · 07-23-2006, 01:11 PM

my question is................

do they make a NON-FINNED BRAKE DRUM FOR OUR TRUCKS ----> 71 2wd sb bb w/ 12bolt rear- 5 x 5

dwcsr · 07-23-2006, 04:27 PM

how wide are the shoes and what is the outside diameter of the drum, there are two sizes. They made several types in that year.

QKENUF4U · 07-23-2006, 05:42 PM

ive got the 11.09" brakes ? did some measureing and the outside of the drum is 11"+, backing plate is 12"+ and overall diamter of the drum on back side is almost 14" . i have just over 12" inside the rim. im gonna call the guy that i got the rims from (EARLY WHEEL COMPANY) and ask him if there is anything i can do.
so what size brakes came on these trucks ?

dwcsr · 07-23-2006, 08:39 PM

On a 71 its 11x2 brakes with a 13.64" outside drum diameter. The other option in 75 is a 11 5/32" x 2.5" with a 13.34" outside diameter. Looks like neither will work for you. The axles I have here are all finned and all the pictures I saw of replacements either said finned or showed a picture of a finned drum. I think you may have to try to return them OR...

This is a long shot but you could try a junk yard and see if a same year Buick centurion rear drum will fit. They use the same front rotor on 73 c10 and 73 Buick centurions, not all years but several years they were the same. 71 centurions is 11" 5x5 bolt pattern with a diameter of 12.8", I just don't know the brake offset. It’s finned but not as heavy a fin. Cost is $18.00; part number is RAYBESTOS # 2059R. You should be able to get it locally or rockauto.com. From what I can tell it’s a lighter finned drum but it should be ok as long as you’re not hauling a 1/2 ton or towing your house.... Sorry you'd have to live in Texas to try towing your house with a pickup.

07-23-2006, 11:18 AM	#1
QKENUF4U Senior Member Join Date: Jan 2005 Location: SUNNY WARM BIKE RIDING COTTONWOOD ARIZONA Posts: 2,097	all rear guru's please read............. http://67-72chevytrucks.com/vboard/s...92#post1764092

07-23-2006, 01:05 PM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: all rear guru's please read............. So whats your question?

07-23-2006, 01:11 PM	#3
QKENUF4U Senior Member Join Date: Jan 2005 Location: SUNNY WARM BIKE RIDING COTTONWOOD ARIZONA Posts: 2,097	Re: all rear guru's please read............. my question is................ do they make a NON-FINNED BRAKE DRUM FOR OUR TRUCKS ----> 71 2wd sb bb w/ 12bolt rear- 5 x 5 Last edited by QKENUF4U; 07-23-2006 at 01:11 PM.

07-23-2006, 04:27 PM	#4
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: all rear guru's please read............. how wide are the shoes and what is the outside diameter of the drum, there are two sizes. They made several types in that year. Last edited by dwcsr; 07-23-2006 at 04:37 PM.

07-23-2006, 05:42 PM	#5
QKENUF4U Senior Member Join Date: Jan 2005 Location: SUNNY WARM BIKE RIDING COTTONWOOD ARIZONA Posts: 2,097	Re: all rear guru's please read............. ive got the 11.09" brakes ? did some measureing and the outside of the drum is 11"+, backing plate is 12"+ and overall diamter of the drum on back side is almost 14" . i have just over 12" inside the rim. im gonna call the guy that i got the rims from (EARLY WHEEL COMPANY) and ask him if there is anything i can do. so what size brakes came on these trucks ? Last edited by QKENUF4U; 07-23-2006 at 05:42 PM.

07-23-2006, 08:39 PM	#6
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: all rear guru's please read............. On a 71 its 11x2 brakes with a 13.64" outside drum diameter. The other option in 75 is a 11 5/32" x 2.5" with a 13.34" outside diameter. Looks like neither will work for you. The axles I have here are all finned and all the pictures I saw of replacements either said finned or showed a picture of a finned drum. I think you may have to try to return them OR... This is a long shot but you could try a junk yard and see if a same year Buick centurion rear drum will fit. They use the same front rotor on 73 c10 and 73 Buick centurions, not all years but several years they were the same. 71 centurions is 11" 5x5 bolt pattern with a diameter of 12.8", I just don't know the brake offset. It’s finned but not as heavy a fin. Cost is $18.00; part number is RAYBESTOS # 2059R. You should be able to get it locally or rockauto.com. From what I can tell it’s a lighter finned drum but it should be ok as long as you’re not hauling a 1/2 ton or towing your house.... Sorry you'd have to live in Texas to try towing your house with a pickup.



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