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Transmission rebuild
#1
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Ken_P
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So, I'm planning on rebuilding my transmission while my car is all torn apart. ('37 115c) I was wondering if anyone had any tips. Should just be pull the shafts, clean, and replace bearings, right? Any trouble prone areas?

I have the Kanter kit.

Didn't notice any problems when I drove it a few blocks, but the kit was reasonable and it was coming out either way.

Posted on: 2011/6/27 17:39
1937 120 1092 - Original survivor for driving and continued preservation. Project blog / Registry

1937 115 1082 - Total basket case, partial restoration, sold Hershey 2015 Project blog / Registry
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Re: Transmission rebuild
#2
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Thomas Wilcox
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Ken,

My advice is disassemble as little as possible to replace the front and rear seals. If a transmission is working fine, the best thing, in my opinion, is to leave it alone. Give everything a very thorough cleaning with kerosene, put it back in the car and enjoy.

If you are determined to tear it down, I recommend taking very detailed notes and lots of photos during disassembly. Synchro transmissions have lots more parts than the old straight gear boxes. Pay attention to the orientation of sliding gears and synchros so you can put them back the same way (front to the front). Check gear teeth, shaft roundness, and shaft trueness. The mating of the gears is important, as is their travel. There should, someplace, be tolerances available for use during reassembly.



Cheers,

Tom

Posted on: 2011/6/27 20:30
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Thomas Wilcox
34 Roadster, [url=https://packardinfo.com/xoops/html/modules/r
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Re: Transmission rebuild
#3
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fred kanter
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The floor shift trans and the later 39-54 column shift trans are for rebuilding purposes identical. There is no shaft roundness to check, nothing wears that way, there are no gear tolerances given to measure. There is no front seal.

Use a 48-50 or 51-4 service manual, detailed photos and instructions

Front bearing is often worn, rear less so. Rear seal only.
Needle roller bearings on countershaft and caged roller brg inside input shaft, usually OK.

Posted on: 2011/6/27 22:16
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