Weld on Steering Pinion Couplers C42-353-BSpline is correctly sized to fit the Stiletto 5/8-36 spline pinionMachined from 4130 N Chromoly C42-355Spline is correctly sized to fit the Stiletto 5/8-36 spline pinionMachined from 1018 mild steel C42-355-BSpline is correctly sized to fit the Stiletto 5/8-36 spline pinionMachined from 1018 mild steel C42-403-ASpline is correctly sized to fit the Stiletto 5/8-36 spline pinionMachined from 4130 N Chromoly C42-403-BSpline is correctly sized to fit the Stiletto 5/8-36 spline pinionMachined from 4130 N Chromoly Stiletto Steering is unique The pressure angle of the Stiletto 5/8-36 pinion spline is unique to Stiletto Steering, this proprietary spline design will not accept other manufacturers attempts to replicate the Stiletto spline 5/8-36 or OEM type splined components that share the 5/8-36 spline callout. Note: There are other performance aftermarket manufacterers have attempted to reverse engineer the 5/8 -36 Stiletto Spline, and they've failed. Resulting in parts that they claim to fit Stiletto - won't. Trust genuine Stiletto! The splines in our couplers are precision broached to the correct profile and size for the Stiletto pinion spline. We inspect and test fit each part 100% - we guarantee they will fit their intended purpose. We offer several types of weldable splined pinion couplers to achieve a proper and secure connection between a steering shaft or drive unit and the steering box when a U-joint is not desired. Split-Bolt coupler: Provides positive clamping on the splines, plus the added security of the bolt passing thru the retaining groove of the pinion. When space or weight savings is a primary concern, the Dual-Lock coupler or Straight coupler are other options to consider. Dual-Lock coupler: The Dual-Lock coupler has two set screws with locking nuts offset 90 degrees from each other. This dual set screw design draws up the connection thereby eliminating the potential of undesirable lost motion with normal spline clearance. To prevent spline deformation the locking screws are positioned to locate in the external retaining groove of the pinion. Straight coupler: This coupler has no built-in retention provision; the installer will need incorporate a security method of locking the coupler to the male pinion for the specific application.
