2006 GMC Sierra 1500 SLE1 4dr Crew Cab 5.8 ft. SB (5.3L 8cyl 4A)
The dealer had installed 20" wheels and tires on this truck and it looked good. I ask if it had the same rear end I was trading and they said " I think so" so old trusting Melvin didn't check. It turns out I got a 3.23 rear end with a 5.3 engine and oversize wheels and it drops out of overdrive to go over interstate overpasses if your speed is less than 65 MPH. Driving less than 50 mph it drops a gear if you touch the gas pedal. My wife's Toyota 4 runner drives better, just no hauling or towing capacity.
It looks good and the interior is nice with extra features most Fords and Dodges don't have. Front bucket seats are comfortable.
Engine needs more torque. Needs a transmission thats shifts a little firmer.