Fabtech 15-20 Ford F150 4WD 2in Uniball UCA Sys w/Dl 2.5 Resi & 2.25

System Features & Benefits - Arms eliminate upper ball joint w/ super strong 1? ID Stainless American Uniball. - Allows for increased wheel travel when used with Dirt Logic 2.5 Coilover shocks. - Chromoly tubing reduces flex found in stock arms for more positive road feel. - 17-4 Stainless Steel Heat treated Uniball pin fits into factory ball joint taper without modification to the spindle for easy return to stock feature. - Arms are direct replacements for factory arms on suspensions that require additional strength and align ability. - Built with same materials as found on Trophy Trucks. - .120? Wall 4130 Chromoly Tubing. 1.25? OD. - .250? wall DOM Bushing Barrels. - 1? ID Stainless Steel American Uniball. - 17-4 Stainless Misalignments. - Heat Treated 17-4 Stainless Steel Tapered Uniball Pins.