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Old 02-02-2022, 01:37 PM   #2
LockDoc
The Older Generation


 
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Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 26,078
Re: Adding 4G60CA AUX suspension to C20

Quote:
Originally Posted by Aruba1 View Post
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Hi all,

Long story short, I have a 72 C20 that I converted to a dually. I retrofitted the 1989 C3500 big brakes and dually differential to the C20. The C20 currently has a weak 5 leaf spring system with no helper springs. I have a steel flat bed and air bags to help to carry some weight.

I came across a 72 C30 system that has 8 leaf springs and 5 leaf helpers and I am going to add that to my C20. The 4G60CA is 2-1/2" wide and my leaf springs are 2-1/4". Do I need to install new hangers on my C20 or will the stock hanger accept the slightly wide springs?

The upgrade of the suspension is needed as I will install a dump body on the truck next week. I can't wait to see everything completed and see how the LS/NV4500 will tow :-).

Thanks!!

I would just grind down the sides of the spring eyes until they clear if they don't already. I wouldn't think it would take much. Just grind the same amount off of each side of the eye.

I changed the title and edited out the WTB sentence. You have to be a "Premium" member to post a WTB.

This subscription page explains the different subscription options:

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If you subscribe you can post a WTB in the appropriate classified forum....

Thanks,
LockDoc, Moderator
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Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

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