Question: what is the difference between a silverado z71 and a silverado 4x4?
Answer: Z71 is a suspension package offered by GM. You can get a 4x4 Chevy without the Z71 package, and you can get a 2wd truck with the Z71 package. The Z71 package is just upgraded shocks, skid plates, locking rear differential, and graphics. ... By default its front-wheel drive, with the option to do 4WD.