[qoute]Now my first question is what size is the block on my rear axle? Its 2 inch lift block right?[/quote]
2.5" on 01+ 4x4's
chevy shackles will add 1.5".
Next is what all does everyone replace in the front end.
upper and lower joints, and tie rods. go with spicer or moog. great quality.
I suggest the bilstein heavy duty's off ebay for like 250 shipped...i loved them before i was lifted.