77 C30 Dually Suspension

[MacRuidh]

Good evening,

I just picked up a 77 C30 Dually Crewcab and I will need to change out every suspension component. I notice the c30 stuff isn't as common as the others so what is the general go to brand for suspension parts? Also what is interchangable between the 10's and 20's with my 30 if any?

 

[sickchev]

GMC / Chevy C30 Suspension

GMC / Chevy C30 Suspension parts and components

westernchassis.com

This place has drop stuff and new tubular A arms for a c30. I can tell you that the rear leafs will be the 56" long. The rear shackles are the same on all c10 - c30. c20/c30 have a different style front leaf hanger. You can get a lot from Rockauto https://www.rockauto.com/en/catalog/chevrolet,1977,c30+pickup,5.7l+350cid+v8,1033850,suspension. and the rest you can get from LMC

 

[fast 99]

Stay with name brands like Moog. Usually twice the money of offshore but worth every cent. Just did a 1 ton Ford with RA parts. I try to buy local when I can, but even with shipping still much less than local.