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  1. Towing
    Hey guys, I have a 2001 GMC Sierra 1500 4WD Extended Cab with a 5.3L, 3.73 gears, 245/16 stock tires, and about 286,000 miles. Most are highway miles without a trailer. I tow a 7,500 lb travel trailer (when loaded) about 3 times a year to camp in the Rocky Mountains and don't drive it much...
  2. Engine & Performance
    Hey all, I've got a '02 Sierra 2500 I finally regularly tow with, 8,000# or so fifth wheel and a smaller car hauler. I ended up doing a full float dually axle swap, and I have the 4.10s in the rear (what was in the axle) and 3.73s up front. I'm getting to the point where I need to swap gears up...
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