M16 Round 365mm Long Heavy Duty U-Bolt Kit is design includes (4) U-bolts that are 16x89x365 MM. These U-bolts fit with a 10.5 Sterling axle. This kit is for 10.5 Sterling Axles springs that do not have a factory contact overload. If you're unsure, Click Here for more information. These U-bolts are designed to fit with a 5.5 inch block height. That is total block height. Regardless of how many blocks you have.
Vehicle Fitment: 1999-2010 Ford F250/F350 4WD