Tapered Steering Knuckle Insert Cost-effective solution for GM 1-ton steering upgrades. A cost-effective solution for upgrading to GM 1-ton steering without buying an expensive tapered reamer. Simply drill your knuckles to 7/8" and drop these inserts in place. These precision-machined inserts eliminate the need for costly specialized tooling while ensuring a perfect fit with GM 1-ton tie rod ends. The tapered design provides the exact geometry needed for proper steering component alignment and eliminates play in the joint connection. Part Number: PN1354 Fits GM 1-ton taper (.75" large end, .68" small end) Works with OTK or UTK steering setups Requires 7/8" drill bit Sold individually - order one per tie rod end Note: Compatible with our GM 1-ton tie rod ends only.