This is the basic kit essential for a 3" Diameter rear axle swap (9", D44HD, Toyota ) 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 (2.5" or 2.75") with 3 pin mounting options, a pair of our Spring Perches (2.5" or 2.75") 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 3" Axle under the rig.