Quote:
Originally Posted by slowmover
SAE J2807 is expressly designed to sell pickups and keep buyers from considering other vehicles. Which in turn are never "tested" and assigned "tow ratings" (a marketing term, not an engineering category), to the detriment of the general public...
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GAWR is an engineered specification but should be assessed in consideration of tires installed and their respective load ratings.
Front GAWR + Rear GAWR = GVWR (unless other conditions exist which reduce GVWR such as frame strength, suspension design, etc) Some pickups available with both leaf sprung and air suspensions share axles but rate the two methods of attaching the axle to the frame differently.
For single unit trucks (like pickups) GVWR = GCWR
GVWR - GVW = payload
GVWR - GVW = towing capacity
LOTS of vehicles other than pickup trucks have tow ratings, trailer weight ratings, etc. SUVS, minivans, crossovers, plain old sedans...not sure there's a category of vehicle which could be considered entirely void of that rating. Even my Harley has a trailer weight rating.