Description: Lowering Block Kits are designed to lower the rear of your truck 4". All lowering blocks are built of Aluminum and come complete with 1/2" diameter U-bolts, washers and nuts. Block Measurements Width: 2.20" Length: 4.85" U Bolt Measurements Inner Width: 3.125" Overall Length: 11" Thread Length: 5.5" Application for: For Nissan 720/Hardbody 1983-1997 Package Include: 1× 4" Lowering Block Kit W/o Product Instruction Note: .