1972 C20 2 wheel drive GVW

[Bones72Super]

I need a few pics of the GVW numbers on 1972 2 wheel drive C20 VIN tags. Your VIN number doesn't need to be in the pic just the GVW. Any help would certainly be appreciated. Happy Holidays!

[NorCalC20LWB]

Here ya go...

[Bones72Super]

Thanks! I need a few more examples y'all

[Bones72Super]

Originally Posted by NorCalC20LWB

Here ya go...

Did your truck come optioned with heavy front spring?

[NorCalC20LWB]

Originally Posted by Bones72Super

Did your truck come optioned with heavy front spring?

I'm not sure about the springs, here's a pic of the SPID if that helps....

[Bones72Super]

Originally Posted by NorCalC20LWB

I'm not sure about the springs, here's a pic of the SPID if that helps....

Heavy Springs may have been part of the" Custom Camper Equipment ". Jocko most likely will be able to shed some light on that

[mr.mud1]

here's the plate on my 72 big block c-20 with a Dana 60 rear on leaf springs.the build sheet says G50 HVY Rear Spring,no mention of front springs.

[jocko]

I’ve never seen a C20 (or K20) that was not 7500 lb GVWR - have had HO and D60 rear axles in them. But who knows. Had a 72 C20 with G50 Heavy Rear Spring and a K20 with G50 Heavy Rear Spring and F60 Heavy Front Spring - both were 7500 lb GVWR.

[factorystock]

Originally Posted by jocko

I’ve never seen a C20 (or K20) that was not 7500 lb GVWR - have had HO and D60 rear axles in them.

Interesting point jocko, but surely they all can't be 7500lb. AFAIK, if it had all the optional heavy duty equipment, it was rated at the max. 7500lb. For instance, Ford had a 6200lb, 6900lb and a 7500lb version of the F 250 during the same era, depending on the spring build up and tires.

[Bones72Super]

Here's another with slightly different as manufactured vs max capability on the rear axle.

[jocko]

Originally Posted by factorystock

Interesting point jocko, but surely they all can't be 7500lb. AFAIK, if it had all the optional heavy duty equipment, it was rated at the max. 7500lb. For instance, Ford had a 6200lb, 6900lb and a 7500lb version of the F 250 during the same era, depending on the spring build up and tires.

I certainly don’t disagree - I’d assume there are some different ratings out there, I’ve just never seen or owned one - so am very curious to see some new info (this was a great question Bones!). I’ve never even seen one with the lower as mfgr’ed # as posted above. Very interesting.

[71meangreenc10]

I have 3, 3/4's. Two 71's and a 72. Here are my ratings.

71 Longhorn, 350 eng, HO rear. Leaf Springs
3000 Front
4700/5500 Rear
6700/7500 Total

71 Cheyenne (Mo Door) 402 BB, D-60 Rear, Rear Heavy Coils
3000 Front
4880/5500 Rear
6700/7500 Total

72 GMC 350 eng, SPID Painted over, Has TH350, D-60 rear, Leaf Springs
3500 Front
4700/5500 Rear
6700/7500 Total

Both my 71's have readable SPIDS.

Smitty

[mr48chev]

It's going to depend on what tires and springs were on the truck when it was sold new.

As you can see here a C 20 could come with one of three gross weight capacities 6200, 6700 or 7500 depending on the wheel and tire combo and the rear springs that it has.

That found here in the 1972 Chevy truck PFD from the GM heritage center.
https://www.gm.com/content/dam/compa...olet-Truck.pdf

[factorystock]

Originally Posted by mr48chev

That found here in the 1972 Chevy truck PFD from the GM heritage center.
https://www.gm.com/content/dam/compa...olet-Truck.pdf

Excellent documentation, thanks for posting!

[sloGMC]

Originally Posted by Bones72Super

I need a few pics of the GVW numbers on 1972 2 wheel drive C20 VIN tags. Your VIN number doesn't need to be in the pic just the GVW. Any help would certainly be appreciated. Happy Holidays!

Do you have a specific question about how the GVWR works? It seems like it is typically something like this:
6200lbs - limited by base springs or base tires (3980lbs)
6700 lbs - upgraded rear springs (G50), limited by upgraded rear tires (4880lbs)
7500lbs - upgraded springs (G50), max upgrade tires, limited by rear end (5500 lbs) or other component

There are some variations in the "max rear weight at ground" if alternate tire/spring combinations were ordered.

[mr48chev]

I've posted it on the 47/59 group before but you can find the pfd for most years by scrolling down this list from the GM Heritage center archives https://www.gm.com/heritage/archive/...tion-kits.html

[Mike C]

I’ve owned 4 different C20’s. The 69 GMC didn’t have the GVWR listed on it’s tag. The others were 6200 GVWR for a 127” wb, 6 cylinder 3 speed and 4.57 gears. A Longhorn 133” wb with 350, SM465 with a 6600 GVWR and a 400/TH400 127” wb with 7500 GVWR.