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#1 |
Registered User
Join Date: Mar 2011
Location: Brandon,Iowa
Posts: 391
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72 C20 rear end
I have a 72 C20 , originally a 402 TH400, coil spring truck. it has a Dana rear end.
My question is concerning brakes. What determined what size brakes were installed on these trucks ? Was it engine ? trans ? coil or leaf spring ? I noticed that the brake shoes are listed by spring style and are 2 different sizes ,,, why would spring style dictate brake size ? Thank you in advance for any and all information ! Have a great day ! Tom |
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#2 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 72 C20 rear end
For 1972:
C/K10s are 11x2" rear brakes C/K20s are 11x2.75" C30s are 13x2.5" This is from the GM Heritage Center information: https://www.gmheritagecenter.com/doc...olet-Truck.pdf
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#3 |
Registered User
Join Date: Mar 2011
Location: Brandon,Iowa
Posts: 391
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Re: 72 C20 rear end
Napa and Rock auto both list
w/ Coil Springs;w/ 11 5/32" X 2 3/4" w/ Leaf Springs;w/ 12" X 2.5" Brakes Wow ! More confusion ................. |
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#4 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,550
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Re: 72 C20 rear end
Dana axle more than likely to have the 12'' brakes
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