8.1 versus 6.00
Looking at used Chevy/GMC 2500HD's for a TT of about 10,000 GVWR. Would make sure that it has the tow package. We do travel in the Rockies and would like experiences and or opinions on the 8.1 versus...
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30degrees is around 60%.
My point is, that some roads can be steeper than freeway grades. I have stalled out many rigs on the local steep grades. Blown up a few transmissions in the past too, all due to incorrect overall low gearing. My old 96 6.5 had a higher stall point than my double the HP/torque dmax. BECAUSE the 6.5 had a better gearing ratio to multiply the torque, so it could pull 20K up a 30%, vs the dmax at 24% at 20K. Yeah the dmax did 55 up a typical 3-5% freeway grade, the 6.5 was doing 40'ish. Differences yes, but one might get to a job/camping site, the other will get to with in a block or mile or two, 20-30 min before the other, but the one with the correct setup for the job, gets to the site you are going to, be it a job site, or camping site.
The newer rigs with the 6 sp transmissions as mentioned, with slightly less hp torque than older motors, may be the better option for the reasons I am stating.
Marty
My point is, that some roads can be steeper than freeway grades. I have stalled out many rigs on the local steep grades. Blown up a few transmissions in the past too, all due to incorrect overall low gearing. My old 96 6.5 had a higher stall point than my double the HP/torque dmax. BECAUSE the 6.5 had a better gearing ratio to multiply the torque, so it could pull 20K up a 30%, vs the dmax at 24% at 20K. Yeah the dmax did 55 up a typical 3-5% freeway grade, the 6.5 was doing 40'ish. Differences yes, but one might get to a job/camping site, the other will get to with in a block or mile or two, 20-30 min before the other, but the one with the correct setup for the job, gets to the site you are going to, be it a job site, or camping site.
The newer rigs with the 6 sp transmissions as mentioned, with slightly less hp torque than older motors, may be the better option for the reasons I am stating.
Marty
