thanks for trans info

[GModelle@domain.elided]

Esteemed Alfisti,
The opening in the back of the bellhousing has been attributed to an earlier 
design. Thanks to all who staightened me out on this matter. The P.O. had 
apparently mated the 1750 to a later, or original '72 gearbox. It's clear to 
me now that the gearboxes and bellhousings are discreet in their combination. 

There is one small issue that I humbly submit as I begin the reassembly 
process. The Spider Service Manual shows three pieces that bring the 
propellor shaft into contact with the rear of the transmission. (besides the 
guibo) There is a washer, a plug, and a bushing. On dissassembly, my car 
possessed only the slightly tapered, cylindrical black rubber washer. The 
nose of the output shaft was pretty battered looking, having fresh metal 
indicated contact....and wear. This may explain the rumbling I had been 
experiencing during no-torque regimes. I'm guessing I should be looking for 
these replacement parts and would appreciate any comments to bring this 
assembly into correctness.  Thanks again, Digesti. 
Modelle in Somers Point
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