I have a friend considering a new truck, he went into the chevy dealer and asked about towing capacities. The brochure stated the following:

3500 with Duramax and 3.73 max trailer weight 15,100

Same in 2500HD is 15,600

He called me and asked me why that was. The 3500 should be able to tow more payload. I was unable to answer his question.

Input please..or thoughts so I may answer his question?

Regards
Jeff