Anyone own a 01\'-02\' 2500 HD with the 6.0? if so how does it do for towing?? i went to go look at a 01 2500HD 4x4 crew cab and was wondering if it a good choice for a tow rig. i'm still shopping so any info would be nice. i would like to find the same truck, but with the 8.1, should i just wait till i find it??