GVWR vs. GCWR vs. GAWR: understanding truck weight ratings

Rating and weight are not the same thing

The “R” in GVWR, GCWR, and GAWR means rating: a manufacturer-stated limit. GVW, GCW, and actual axle load are the corresponding loaded weights. A rating does not describe what the vehicle weighs on today’s trip; a scale weight does not replace the rating it must be compared with.

GVWR and GVW

Chevrolet’s 2025 Silverado Owner’s Manual describes GVWR as including the vehicle, occupants, and cargo. Its trailering section explains that trailer tongue weight contributes to GVW. Compare the rating with the truck’s actual loaded weight—not with an empty or brochure weight.

GCWR and GCW

GCWR is the total allowable weight of the completely loaded vehicle and trailer. Chevrolet includes passengers, cargo, equipment, and accessories in that relationship. GCW is what the complete loaded combination actually weighs.

With separate hitched scale readings, add the hitched truck weight and trailer axle weight. The tongue load is already supported by the hitched truck, so it is not added a second time.

GAWR and actual axle loading

Front and rear GAWR values are separate. The sum of two axle ratings is not a substitute for GVWR, and staying within GVWR does not prove that the rear axle is within its own rating. The Owner’s Manual directs owners to weigh the vehicle to determine actual front and rear axle loads.

Illustrative example: four separate comparisons

• GVWR margin: 7,200 − 6,800 = 400 lb remaining.
• Front GAWR margin: 3,800 − 3,300 = 500 lb remaining.
• Rear GAWR margin: 4,000 − 3,500 = 500 lb remaining.
• GCW: 6,500 + 7,000 = 13,500 lb.
• GCWR margin: 16,000 − 13,500 = 2,500 lb remaining.

All four examples have positive arithmetic margins, but that does not establish any other limit. Payload, maximum trailer weight, tire, hitch, tongue-load, and any other applicable checks remain separate.

Why missing information means Not checked

A comparison requires both a rating and a compatible actual weight. Without GVWR or loaded GVW, the GVWR check cannot run. Without GCWR or compatible combination weights, the GCWR check cannot run. Without an axle rating and scale load, that axle check cannot run.

Not checked is not a favorable or unfavorable result. It means the required evidence is incomplete.

Common misunderstandings

“Below GVWR means every axle is below GAWR.”

Load distribution can place too much weight on one axle even when total vehicle weight is below GVWR. Compare each axle separately.

“GCWR is the trailer rating.”

GCWR covers the loaded combination. Maximum trailer weight is a different rating with manufacturer assumptions and its own application.

“A missing rating can be treated as zero or ignored.”

Zero would be false data, and silently ignoring the check can imply more certainty than the inputs support. TowLoad Guide leaves it Not checked.