This is the basic kit essential for a 3"" Diameter rear axle swap (D44HD) or spring over, more items could be added but this is the bare minimum, You will receive 1 pair of our 3/8" thick A50 Steel U-Bolt plates (for 2.5" springs) with 3 pin mounting options, a pair of our Spring Perches (2.5" wide with a 3" axle tube cutout) with the same pin option to match, 4 - 10" x 5/8" x 3" U-Bolts with 1/4" laser cut washers and nuts, and a pair of Shock Brackets. This will get your D44 HD Axle under the rig.