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#1 |
Project underway - finally.
Join Date: Feb 2007
Location: Greenville, SC
Posts: 493
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Leaf springs - what is stock?
My truck, 72 GMC long bed half ton, is undergoing restoration. As part of that, I have some plans for the rear suspension. I wanted to look at the original spring rates, but I am finding that none of the springs which are listed for this truck match what's under there. Currently it's 3 leaf plus an overload. Is this a stock pack? It looks it. Can anyone talk about what stock packs were available and what I have on here?
Thanks
__________________
1972 GMC Pre-resto... awaiting allocated funding. |
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#2 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Leaf springs - what is stock?
What is listed on the SPID and what is the rear axle rating on the data plate?
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#3 |
Project underway - finally.
Join Date: Feb 2007
Location: Greenville, SC
Posts: 493
|
Re: Leaf springs - what is stock?
The original rear axle is gone. The tag says "G70 R suspension leaf spring".
__________________
1972 GMC Pre-resto... awaiting allocated funding. |
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#4 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Leaf springs - what is stock?
Look my GMC references are limited on this. So I am trying to work it backward from the chevy side. They should be 1250-lb each, two-stage springs. BTW: If you need it, here are bruceman1968's decoders.
http://67-72chevytrucks.com/vboard/s...d.php?t=570059 So far it looks like a four leaf would be the stock C10/C1500 application. If you are wanting heavier springs the standard C20/C2500 five leaf would be the step up on a half ton truck.
__________________
Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#5 |
Project underway - finally.
Join Date: Feb 2007
Location: Greenville, SC
Posts: 493
|
Re: Leaf springs - what is stock?
Thanks Tim!
__________________
1972 GMC Pre-resto... awaiting allocated funding. |
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