JohnDar
Prolifically Gabby Member
GMC Truck Info
The attachment is some info I gleaned from the GMC site for the Sierra 2500HD and 3500HD Duramax. I used the extended cab numbers since that's what I'm interested in. With the 3500, you're stuck with the long box, so I ran the numbers for the 2500 with that bed.
The attachment is some info I gleaned from the GMC site for the Sierra 2500HD and 3500HD Duramax. I used the extended cab numbers since that's what I'm interested in. With the 3500, you're stuck with the long box, so I ran the numbers for the 2500 with that bed.
