[mpeastend]

I'm in the market for a new 3/4 ton, probably Chevy/GMC 2500HD or Dodge 2500 (regular cab, long box, 4WD, gas engine). You seem to gain quite a bit in towing capacity with a 4.10 rear vs the 3.73. As an example, the GMC goes from 9,900 lbs to 13,000 (with the ball hitch).

Does anyone here know how much mileage I'd be giving up by using the 4.10? The truck is strictly for towing a 24 or 28 ft enclosed trailer to the track so mileage can get important in the long run, especially with gas prices creeping up. Any resident truck experts have real world experience with this issue?

Thanks, Mike.