Nodular Iron 31 spline Eaton Heli- Trac Center Section 9" Ford with Premium STG Gear ring & pinion, Assembled. 2.89" OD Bearing size x 1.78 " ID bearing surface. nodular iron 5 bolt pinion support.
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Ford 9 in. Nodular Iron 31-Spline Spool Third Member Assembly [3.25:1]
Nodular Iron 28 spline PEM Heli-Trac Center Section 9" Ford W/ Premium STG Gear
9" Ford PEM Nodular Iron 37 spline True Trac Center Section with Premium STGGear