As an upgrade to our popular 4" System we offer the system with our Uniball Upper Control Arms. The Uniball Upper Control Arms feature .120" wall 4130 Chromoly tubing with a 1.50" OD and 1" FK Stainless PTFE Uniballs for unsurpassed strength. The system also includes front differential drop brackets, a 1/4" thick steel skid diff plate along with 1 1/2" rear lift block and u-bolts. The 4" System utilizes the stock front Coilover shocks with upper spacers along with rear Stealth Shocks. Uniball Upper Control Arms are available separately as an upgrade to stock, previously installed Fabtech'suspensions or other aftermarket suspension systems. This product ships in approximately 1 days