Tacoma 6-lug 1" Rear Suspension Lift U Bolts 4PCS 8.5" Long OEM Factory Material Contents: 4 certified carbon steel square leaf spring axle u-bolts with grade 8 hi-nuts and security spring washers Technical notes: Retighten U-bolts after the first 500 miles, minor settling from new or repaired springs can cause a reduction in clamp force Benefits: American leaf spring axle U-bolts are designed for maximum u bolt clamp and embody extreme strength Note: U bolt color may vary