This kit is a lighter version of our Extreme Duty Kit. It still uses our 4130 Spherical bearing housings and were designed to bolt into your chassis. The bearings make it perfect for nonparallel frame rails. The cross bars are 36" long with 1.250" OD by .120" wall 4130 chrome-moly so you can cut to your desired length. This kit comes with 4130 Chrome-moly arms, bearing housings and tabs, Chromoly tubing with threaded tube inserts and QA1 rod ends. It comes with all the grade 8 hardware necessary to assemble the kit. Upgrade to chromoly QA1 Rod Ends available.