Universal Fitment — Fit for Spicer drivelines 1610, 1710, 1760, 1810, 1880, — Fit for Meritor (Rockwell) 16N, 17N, 18N, 1710, — Fit for Spicer SPL 140, 170, 250 «Life Series», — Fit for Meritor RPL 20, 25 «Permalube» Series. (Designed to work with U-Joint bearing cups from 1.5″ to 2.2″ and will fit virtually all Class 6-8 Trucks and Machinery) Easy to Use STEP 1 – Remove all fastners from bearing cups STEP 2 – Slip the U-Joint puller over the yoke of the driveline STEP 3 – Turn the tool’s forcing screw clockwise with a hand or impact wrench (NOTE: reserve thread) The U-Joint Puller may be used with up to a 1-inch impact wrench .