1971 C20 - Heavy Rear Spring question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

King951 · 10-31-2017, 06:36 PM

Hey there,

Purchased a 1971 C20 earlier this week. After looking at the original order sheet on the back side of the glove box door I noticed the following: "G50 | HEAVY REAR SPRING". What exactly is this referring to? The rear leaf springs? Would this make any difference if I wanted to order rear shocks for the truck?

https://i.imgur.com/K439yHm.jpg

**jocko** · 10-31-2017, 06:46 PM

I believe G50 = HD springs. Leafs would be called out on the SPID, if ordered, as G70.
EDIT: didn't mean to type "coils" - if you have G70 and G50 both, then you have HD rear leafs.

10-31-2017, 06:36 PM	#1
King951 Registered User Join Date: Oct 2017 Location: Riverside, CA Posts: 33	1971 C20 - Heavy Rear Spring question. Hey there, Purchased a 1971 C20 earlier this week. After looking at the original order sheet on the back side of the glove box door I noticed the following: "G50 \| HEAVY REAR SPRING". What exactly is this referring to? The rear leaf springs? Would this make any difference if I wanted to order rear shocks for the truck? https://i.imgur.com/K439yHm.jpg

10-31-2017, 06:46 PM	#2
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: 1971 C20 - Heavy Rear Spring question. I believe G50 = HD springs. Leafs would be called out on the SPID, if ordered, as G70. EDIT: didn't mean to type "coils" - if you have G70 and G50 both, then you have HD rear leafs.

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