rgeisler wrote:
Does anyone know how to find the actual towing capacity of a vehicle? Every source that I look at gives a different answer. I have a 2004
GMC Sierra 2500 HD 6.0 Liter, 5 speed automatic (I think), with Tow/Hauling button, Extended Cab/Long bed. When I look at the 2004 Towing Guide it gives several different ratings, I think based upon the Axle ratio, which I don't know, but it appears to be listed as 10,100 lbs. When I look up the VIN # at a site called Decodethis.com, it shows a maximum of 15,500 and a standard tow rating of 9900 lbs. I have no idea what the difference between the maximum and standard towing capacity is.
Have you looked in your owner's manual? It will give you tow ratings for the different engine/axle ratio combinations.