Drive line upper grease fittings and roller bearing

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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wild4679
Posts: 73
Joined: July 8th, 2017, 7:14 am
Body Type: 82B
Model Year: 1931

Drive line upper grease fittings and roller bearing

Post by wild4679 »

I'm rebuilding the rear axle on my '31, including removal and cleaning of the torque tube and driveline. The roller bearing (A-4645) near the speedometer gear appears "sloppy" in my hand, with the rollers all rattling in the race.

I have two questions for the group:

1) Is this slop in the roller bearing A-4645 normal and I don't need to replace it? At this time I can't find a new one.

2) What is the purpose of the additional grease fitting on the torque tube near this bearing? One fitting makes sense, but I can't tell why there are two.
User avatar
stew
Posts: 64
Joined: June 2nd, 2012, 4:46 am
Body Type: dump
Model Year: 1931
Location: Lake Mills, Wisconsin

Re: Drive line upper grease fittings and roller bearing

Post by stew »

June 1930 Service Bulletins state, that a second fitting was added to aid in lubricating the universal joint through the front fitting. Before this, there was only the rear fitting, so the only way grease could get to the universal, was to pass through the bearing first.
Always one bad decision away from a good time.
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