'31 Slant Window sedan window channel

[JayJay]

In the process of servicing the latch on the front passenger door of my '31 slant window sedan I had to remove the window and regulator. The servicing and reinstalling of the latch mechanism went fine, but the window - not so much.

Testing the window after installation of the regulator, I found that one of the window arms (there are two on a slant window regulator) keeps jumping out of the end of the track that's installed on the bottom of the window. Like it's overextending. Regulator is in good shape, arms appear to be timed correctly, and there's only one way to install it. But in looking at the window I noticed a couple of things (see pictures):

• The two tracks in the channel are asymmetrical. I would think that since the arms from the regulator are the same length, the tracks would be also.
• The channel is installed asymmetrically - 1" gap to the glass on one side, 2" on the other side.
• There is a piece of masking tape on the channel that says "33-34 - 7.95" which leads me to suspect that the "restorer" of this car (1980's) installed the wrong part. (This would not be the first time I've discovered incorrect parts or assembly).
• The channel that's installed doesn't look anything like the replacement part offered by Snyders (part # A-45962-SW) or Bratton's (part #31290).

So, to get to the meat of this thread:

1. Does anyone have a photo/drawing/dimensions of the proper window channel for the passenger front door window?
2. Does this channel get installed with equal clearance on each side? If not, what are the dimensions?

Strangely, before I "fixed" it this window performed just fine.

My plan at this point, barring information to the contrary, is to order the new channel from the suppliers and install it. The new part appears to be quite a bit longer than the old one, so that should solve my problem.

Thanks, all.