With the knuckle on I was ready to rebuild the birfields and install the spindle. I disassembled the birfields and inspected them and they were in pretty good condition. There was some discoloration on the outer race but virtually no scoring or pitting on either of the outer or inner races or balls. I rebuilt these birfields about twenty years ago and I used the red #2 lithium based wheel bearing grease. I didn’t have a FSM at the time and it seemed like wheel bearing grease was the way to go. Using the FSM this time around, it calls for packing the birfields and the knuckle with molybdenum enriched lithium based grease. Based on the lack of wear I think the red grease did ok. With the birfields reassembled, I installed the oil seals into the axle housing and installed the birfield axles into the housing and differential. Finally, I packed the knuckle about two-thirds of the way full with molybdenum grease. Before installing the spindle I replaced the brass spindle bushings. One looked fine but the other had chatter marks across the face that made for a rough surface. I pressed out the old bushings, pressed new ones in and installed the spindle onto the knuckle.