9-Inch Ford Rear Axle - Building A Righteous Rear

A series of tack welds hold the axle tubes to the centersection and the axle flanges to the axle tubes.

After checking flange-to-flange measurements, the housing is mounted in a rotating fixture and the finish welding is performed, making each weld a non-stop bead.

We opted for the T.S.D. limited-slip differential. This is a torque-bias limited slip that does not employ clutches and requires no maintenance other than periodic gear lube changes.

The inner carrier bearings are pressed onto the differential in this large hydraulic press.

Currie has a special fixture that clamps in the vise and makes tightening the bolts much easier. Torque the bolts in a cross pattern.

The pinion flange gasket is in place first, and the inside of the carrier has been coated with assembly grease before the pinion shaft is installed in the carrier.

The main caps are now installed and a torque wrench brings them to the proper tightening specification.

The assembled differential and ring gear is lowered into the case and rests on the bearing carriers in the case.