As an upgrade to our popular 4'' Budget 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 is available with our high end Dirt Logic 2.5 Coilovers for 10'' of front wheel travel and Dirt Logic 2.25 rear shocks for aggressive offroad driving. Uniball Upper Control Arms are available separately as an upgrade to stock, previously installed Fabtech'suspensions or other aftermarket suspension systems.