loulou57 wrote:
The gvwr on trailer is just over 6000 lb. Towing capacity of Avalanche around 12000 lbs.
The avalanche is the exact chassis as a chevy sierra...
No. 7000-8000 pounds is about right. 12000 pounds may be the GCWR with 3.08 axle. Avalanche is based on the Suburban, not Sierra. They are fairly difference frames, chassis. And the 2003 has a 4-spd trans which makes a big difference is towing performance compared to today's 6-spds.
Payload is the problem for the half ton Suburban and Avalanche. shaffersh1 should weigh it first, subtract from GVWR. Then take off the estimated 700 pounds of people and cargo. The rest can be used for trailer TW.
5k dry seems like a good fit. If your truck did not have the HD towing package, then a larger trans cooler is a good idea. Use a WDH with integrated sway control, use Tow/haul mode, lock out overdrive, enjoy.
