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 3.00-6.50 Standard Gear

U1603 & U1610
Chrome moly 1350 Series Yoke with U-bolts

Professionally Assembled
Timken® Bearings & Races
Grade 8 Ring Gear Bolts