The Secret to Building a Bulletproof 9-Inch Third Member
Currie Racing Gear oil - Currie Enterprises
Ford 9" Complete Positraction 3rd Member 3.50 Gear 28 Spline Posi Differential | eBay
JEGS 555-60688: Ford 9 Inch Posi Traction Third Member Assembly | 3:25 Ratio | 31-Spline | 1310 Series Yoke - 3 7/32 in. W x 4 1/4 in. L | 1 1/16 in. U-Joint Cap | Nodular Iron Housing | 8620H Steel Gears | Trac-Lok Assembly - JEGS
Ford 9" Complete Replacement for Mopar A, B, C, & E-body