Mcleod Pilot Tools Are Designed for Accurate Fit Allowing for Easy Clutch Installation. They're available for a wide variety of input - shaft splines and pilot diameters. McLeod offers them in both an economical plastic for the one time use application and if youre a shop that does clutch installs on a regular basis, we offer a billet steel version for even more precision and long - term reliability. Be Sure to Check Diameter and Spline Count Before Ordering.