Pro Series Nodular Iron Case Assembly Aluminum Support with Lightweight Steel Spool 28 Spline Pro Gear & Chrome Moly Yoke

Complete Center Section Includes: N1905 / N1906 3.062″ Bore Pro Iron Case for 31 or 33 spline 3.250″ Bore Pro Iron Case for 35 or 40 spline • 8-10% Stronger Material Than Factory Nodular Iron • Critical Areas Heavily Reinforced • Chrome Moly Main Caps • Solid Steel Adjuster Nuts N1922 Billet Aluminum Tapered Bearing Pinion Support Over sized bearings and races D1553 / D1554 / D1555 Lightweight steel spool in 31, 33, or 35 spline Choice of 4.86-6.50 28 Spline Pro Gear U1603 & U1610 Chrome moly 1350 Series Yoke with U-bolts Professionally Assembled Timken® Bearings & Races Grade…