Anyone ever replace their rear (aluminum) driveshaft (99-06)? I was backing my truck off a trailer to get it aligned and the rear of the trailer kicked up and hit my driveshaft, creasing it:nono: . I now have to get a new one. The dude at the Chevrolet place said it would be between $200 and $1000. Pretty f-in ambiguous if you ask me. Anyone here replaced one?