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Diff = GCWR - GVWR
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GCWR (Gross Combination Weight Rating) is the maximum allowable weight of a fully loaded vehicle combination (truck plus trailer), while GVWR (Gross Vehicle Weight Rating) is the maximum allowable weight of a single vehicle. The difference between them indicates the allowable trailer weight capacity.
The calculator uses the simple formula:
Where:
Explanation: The difference shows how much additional weight (trailer plus cargo) the vehicle can safely handle beyond its own maximum weight.
Details: Understanding these ratings is crucial for safe towing operations. Exceeding either rating can lead to dangerous driving conditions, increased wear on vehicle components, and potential legal consequences.
Tips: Enter both GCWR and GVWR in pounds (lbs). Both values must be positive numbers. The calculator will show the difference between these two important ratings.
Q1: Where can I find my vehicle's GCWR and GVWR?
A: These ratings are typically found in your vehicle's owner's manual or on the manufacturer's specifications sheet.
Q2: Is the difference the same as towing capacity?
A: Not exactly. The difference gives you the maximum combined weight for trailer and cargo, but you must also consider tongue weight and other factors.
Q3: What if my calculation shows a negative number?
A: This would indicate an error since GCWR should always be greater than GVWR for any vehicle capable of towing.
Q4: Are these ratings the same across all models?
A: No, they vary by vehicle make, model, engine, drivetrain, and other factors. Always check your specific vehicle's ratings.
Q5: How does payload capacity relate to these ratings?
A: Payload capacity is GVWR minus the vehicle's curb weight. It's important to consider both payload and towing capacities when loading your vehicle.