Determining Rear GAWR
I was reading another post and it got me wondering... I have a 2013 2500 HD with a rear GAWR of 6200 lbs. I have 265/70R18E Michelin's with a max load of 3525@80 psi per tire giving me a tire load cap...
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I also have to wonder why GAWR doesn't differ depending on what tire option a truck has from the factory.
The difference is tires/wheels and rear spring pack. Generally on the GM and Dodge/Ram it can also be the 3500 SRW has a aux overload spring pack.
You have the optional 18" tires and wheels as the 3500 SRW uses. If your truck doesn't have the aux overload spring pack then it doesn't have the same capability as the 3500 SRW truck.
Adding bags does give your truck more payload ability but just guessing if air bags would give a 2500 rear suspension a same as.
