07 Sierra 1500 Ext Cab 5.3 3.73 Gears Towing Capacity

07 sierra 1500 ext cab 5.3 3.73 gears towing capacity

PostBy: butchs37 On: Thu Jul 15, 2010 4:08 pm

Anyone have a sierra 1500 ext cab 4x4 5.3 with 3.73 gears and heavy duty towing package and if so how much do you tow. I know the manual says 7000# but looking to find out how much it can really tow. I have a dump trailer about 2500# empty and wanted to load it with about 3 ton of coal and make a 2.5 hr trip loaded about once a year. I have electric brakes and weight distro setup.
Hot Air Coal Stoker Furnace: Alaska 140 dual feed

Re: 07 sierra 1500 ext cab 5.3 3.73 gears towing capacity

PostBy: SMITTY On: Thu Jul 15, 2010 8:51 pm

I've got pretty much the same getup (Silverado), with a Hypertech program, K&N cold air intake & a Corsa cat back. When the truck had about 7,000 miles on it, I put one 2,500 lb. pallet of coal in the back, then took my enclosed trailer (probably 1,600 lbs.? empty) & put 2 pallets on that ...... so 7,500 plus 1,600. Pulled it up a long, steep hill at 45 mph no problem. Owners manual says 7,500 max towing, but I've never been one to follow weight ratings. :lol:

But then again I only had to go 7 miles.
Stoker Coal Boiler: Patriot Coal - (custom built by Jim Dorsey, Taunton MA - RIP 4/18/13)
Hand Fed Coal Stove: Harman Mark III (SOLD!)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler