Check your cap, you should be using a vented gas tank cap. It is possible for a good strong fuel pump to partially collapse a tank without a vent.

To repeat, for an original or of-the-era fuel delivery system your tank must be open to the atmosphere thru either a vented cap, or other means. Not saying your problem couldn't lie elsewhere, but that's where I'd start. If you determine you had a non-vented cap, check to see if the vacuum has collapsed the tank.

You have none of the latching mechanism?

Are you speaking of the shims used to set the rear axle shaft end play? If so, I found no source for them and just cut mine with scissors from steel shim stock.

Aren't all 1934 Packards considered "senior" cars?

I've got some partial views somewhere if I can just find them, what part of the mechanism do you want pictures of?

The taper should be fitted clean and DRY, NO lube, anti-sieze compound, or anything else.

I can't comment on the colors, but the weakest of the two springs goes on the primary shoe to ensure that it activates first. Giving the springs a tug with pliers can usually tell you which is the weaker or stronger.

I didn't check to see how far back pin #186780 was is use, but here's some dimensional info on that pin as used in the senior transmissions 1933-36 and probably later. Perhaps this will be helpful.

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  186780 trans pivot pin.jpg (228.20 KB)

Obviously Packard, motor number corresponds to a 1939 Super Eight.

Bill, sounds to me like you've got some bad information, you should have the same rear axle assembly in your 1200 that I have in my 1100. If you've still got the stock, unmodified rear axle assembly they are not "dual row ball bearings" but, per axle, a pair of single row tapered roller bearings, mounted opposed to each other on opposite sides of the bearing flange. When I needed some a few years back they were active and common numbers readily available at the local bearing stores, I'd be surprised if they are not still so. Just pull one and it's corresponding race and get the numbers, same bearings used for quite a number of years on the Packard senior car axles, also used in rear axles by Chrysler, Hupp, Nash, Pierce-Arrow, Reo, and Studebaker cars and many makes of trucks.

And a note you might want to bring to the attention of your mechanic. On this type of rear axle assembly the rear axle shaft end play MUST be set on each axle shaft INDEPENDENTLY! Adjustment is made via adding/subtracting shims behind the inner bearing race on both shafts.

I'm checking Hollander, they almost certainly list the bearing numbers. EDIT, #s are 342 and 332, bearing and race.

See illustration in the parts list. And here's a photo.

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  Rear Wheel bearings 007 sm.jpg (398.77 KB)


  Axle bearing detail.jpg (697.12 KB)

The vent on the 1956 Dana rear axle was a simple small hole drilled thru the housing. IIRC it was in the axle shaft part of the housing structure, drilled at an extreme oblique angle.