[FITMENT] Compatible with these Toyota Trucks and SUVs: 1995-2019 Tacoma (6-Lug Only), 2000-2016 Tundra, 2005-2019 4Runner. May fit other vehicles. Verify length and width needed, as well as the bend shape. [SPECIFICATIONS] Includes (4) Square Bend U-Bolts, (8) Nuts, (8) Washers. All parts are Hardware Grade 10.9. Ubolt Length: 9 inches. Ubolt Inside Width: 2.42 inches. [PRODUCT BENEFITS] For use with 1 to 3 inch lift blocks / plates. These extended U Bolts ensure proper thread engagement when securing your lift pack and leaf springs to your vehicle. Designed to be solid so that it does not bend or warp under stress, and as long as they are properly installed should last the lifetime of your vehicle. [MATERIAL & MANUFACTURING] The U-Bolts are made from Heat Treated Carbon Steel for optimal durability and fitment. All parts (including the Nuts and Washers) are hardware grade 10.9. Zinc plating / coating prevents surface corrosion and rust. [INSTALLATION] These square ubolts do not come with instructions but is completely bolt-on. Please consult a professional if you need support. Should take 1-2 hours to install. Make sure nuts are tightened evenly (refer to diagram for sequence) and that they are torqued to correct manufacturer specifications. The use of loctite is recommended to protect the threads from rust / corrosion and prevent loosening from vibrations. [ FITMENTS ] Compatible with TOYOTA 1995-2019 Tacoma (6-Lug 4WD) 2000-2017 Tundra 2005-2019 4Runner NOTE: May work on other vehicles. Check against measurements above. Use the Q&A section below with questions. [ IMPORTANT - Verify Prior to Purchasing ] - DOES NOT Include Lift Plates. This is ONLY for the U-bolts / washers / nuts pictured above. - CHECK Your U-Bolt Shape. These are square-shaped ubolts. Make sure it matches your current ubolts. - CHECK Your U-Bolt Install Location. These ubolts are to be installed on top of the springs. - Designed for use with 1.0 - 3.0 inch Suspension Lift Blocks / Plates / Springs. - Installation should only be performed by a trained professional. - An alignment is recommended after the installation of this item. - No Returns or Exchanges once installed.