If you are looking to gain more clearance on the trail, this u-bolt flip kit is just what you need. This kit includes 4 heavy duty 9/16" diameter u-bolts and 2 heavy duty 3/8" thick u-bolt plates. The u-bolts accommodate a 3" diameter axle tube. This kit is designed to work with 2-1/2" wide springs. Our plates are manufactured in Lincoln, NE and are zinc plated for corrosion resistance.