2000 Chevrolet Tahoe Owner's Manual - Page 251

For example, adding a 700 lb. ( 318 kg) snow plow adds more than 700 lb. ( 318 kg) to the front axle. Using the formula, if the snow plow is 4 ft. (122 cm) in front of the front axle and the wheel base is 10 ft. (305 cm), then: W= 700 lb. ( 318 kg), A= 4 ft. (122 cm) and W.B.= 10 ft. (305 cm) (W x (A+W.B.)) / W.B. = (700 x (4ft. + 10 ft.)) / 10 ft. = 980 lbs. So, if your truck's front axle reserve capacity is more than 980 lbs. (445 kg), you could add this snow plow without exceeding the front GAWR. You can add heavier equipment on the front of the vehicle if you compensate for it by carrying fewer passengers, less cargo or by positioning cargo more towards the rear. This has the effect of reducing the load on the front. However, the front GAWR, rear GAWR and the GVWR must never be exceeded. Total Vehicle Reserve Capacity This is the difference between your GVWR and the weight of your truck with full fuel and passengers. It is the amount of weight you can add to your vehicle before reaching your GVWR. The reserve capacity numbers are intended as a guide when selecting the amount of equipment or cargo your truck can carry. If you are unsure of your truck's front, rear or total weight, go to a weigh station and weigh your vehicle. Your dealer can help you with this. Trailer Recommendations You must subtract your hitch loads from the CWR for your vehicle. Weigh your vehicle with the trailer attached, so that you won't go over the GVWR or GAWR. If you are using a weight-distributing hitch, weigh the vehicle without the equalizer bars in place. You'll get the best performance if you spread out the weight of your load the right way, and if you choose the correct hitch and trailer brakes. For more information, see "Trailer Towing" in the Index. 4-50