Forum Discussion
APT
Mar 10, 2014Explorer
GM tow ratings for 2011+ 2500HDs vary a lot. From about 9500 pounds to over 14k pounds. 4.10 axle makes a big jump, much more than the 10% gearing difference compared to GCWR difference of 16k to 20k. So check your RPO sticker in glove box to confirm GT4 or GT5 for 3.73 or 4.10 axle.
9000 pounds for a 5er should be just fine for either. Use tow haul mode, and M5. Expect some downshifts to 4th or 3rd gears on the hills. Let that engine as peak torque is in the 4200rpm range. My 6.0L wakes up over 3000rpm and pulsl hard to over 5500rpm.
9000 pounds for a 5er should be just fine for either. Use tow haul mode, and M5. Expect some downshifts to 4th or 3rd gears on the hills. Let that engine as peak torque is in the 4200rpm range. My 6.0L wakes up over 3000rpm and pulsl hard to over 5500rpm.
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