Corporate 14 bolt axle conversion kit.Also can be used for replacing worn factory components.Kit includes grade 8 5/8" U-bolts, 3/8" laser cut and cnc formed spring plates, and laser cut cnc formed 1/4" spring perches with a 3.5 relief to fit the larger tube on the Corporate axle.Fits 2.5 wide domestic springs, or 2.375" Toyota springs. Kit can also be used on Ford Sterling axles with a 3.5" tube when using a narrow leaf spring such as an 2.5" wide Ford F-150 leaf spring. U bolts are designed for up to a 2.5 inch thick spring pack, or thinner pack with a small block lift. Saddle to end of leg height is 8.5 inch's.Great for turning rear ends with big lifts, much safer than shims. Manufactured in the USA, with US steel, U bolts also a product of the USA made locally for Sky's Off Road Design.You may also want to purchase a set of our lower shock mounts available separately. Longer U-bolts are available on a special order basis, 2-5 days lead time, additional costs, e-mail us for a quote please!