GM 10 Bolt 8.6" Rear Axle Assembly 07-08 GM 1500, 3.42 Posi, Active Brake - USA Standard

8.6" GM 1500 Rear End Axle Assembly, 3.42 w/LSD (Positraction) (Opt GU6) fits model years 2007-08, w/ (JL4) active brake, 2WD & 4WD. Replacement rear axle assemblies from USA Standard come complete with all differential components in one part number for easy, bolt-on installation.