Pair NEW Harry Hockly Heavy Duty Ball Joint kit (uniballs).

Kit consists of:  

2 x Spherical bearings
2 x Circlips
4 x Nylock nuts
2 x Housings
2 x Bushs
2 x Pins

Bottom of Knuckle should be chamfered as shown in Photo 3. (On later type hubs chamfer comes as standard).

Use original standard GM clamping nut & bolt (torque to 22lbf.ft).

Torque 19mm nuts to 50lbf.ft