Curious, how do I get information concerning the GVAWR ratings on my 2500 Ram Laramie, 4x4 Diesel with towing and 4x4 package. I know the payload capacity, but I was curious about the axle ratings. I could not find the ratings in my book. When towing, do most use the payload capacity or axle ratings. According to my vehicle information booklet, it states payload capacity or axle rating when towing. Thank you for your comments.