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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | GVWR= Gross Vehicle Weight Rating
GCWR= Gross Combined Weight Rating
GAWR= Gross Axle Weight Rating
The GVW is figured as the sum total of all the least rated components. So if you have a 9000lb axle with 10:00x20-12PR and the truck is equipped with 9:00x20-12PR or 10PR then it would not be rated at the maximum axle rating of 9000 but whatever the smaller tires would allow for. That is the FMVSS currently in effect. For our older trucks it may not hold true but it still makes sense to follow it for safety.
FWIW, the upfitter of a new C&C is responsible for determining the lawfull GVWR and providing a sticker statement to that effect. Some aftermarket upfitters of a tag or pusher axle may decide not to increase the GVWR even tho' the truck could now safely haul more. This is done to avoid being leaglly liable and sometimes to avoid a Federal Excise Tax which becomes the responsibility of the vehicle owner to pay to the IRS. This is what the vehicle manufacturers have successfully pushed off on small business to avoid responsibility/penalties. darn Yankees.
A little off topic but thought many might find it interesting. | | |
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