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broken dual range transmission case half, need opinions


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12622408_3432354814380_54724378343303282So, I picked up a dirty 5mt from a guy on craigslist, got it home and started scrubbing and found one of the shifter detent ball and plug missing, due to what looks like someone dropping the transmission on the ground.

Anyways, since the chances of getting my money back are slim, has anyone dealt with this before? There are a few threads left on the hole and room for more threads if i tap it farther. I can get a spring and detent ball in there, but I doubt it would be a long term fix. Silicone and jb weld can only do so much with oil soaked aluminum.

I have a single range transmission, is it possible to use the case half from it, since its the side that the low range lever doesn't come out of?

If not, does anyone have any DR case halves collecting dust? specifically the drivers side half.

Edited by maozebong
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what's the "brass" colored inner ring inside the hole?

 

Can you post a picture of what that is supposed to look like?

 

repair looks reasible. be nice if you could just weld it and be done with it.  stop at a machine shop and ask if you're not set up for aluminum.  i've had machine shops do some awesome work on stuff like that and they've never charged me what they should have. 

 

one engine block i had shear a chunk of metal off with at timing bolt - i worked with a machine shop to make a plug/insert - outside tapped with a die and the inside drilled/tapped like the original hole.

drilled the case and tapped it to thread in the outer part of the custom insert - then the inside of it was already drilled/tapped the origina hole size. 

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There is no brass, it's all aluminum. There is a step in the hole, the inner hole is slightly larger than the OD of the detent ball, and the wider portion is the m10 threaded hole for the plug. I dont have a pic of what it looks like normally other than its supposed to have more threads.

 

I have 3 threads leftover and enough room to tap the threads 1/4" deeper or so. If the spring is cut shorter to compensate, the only issue left is sealing the plug with silicone... Which can probably be done when it's clean and on the garage floor. I'll try to tap it tonight after work and report how well it works. If not I'll be disassembling the unit to take the case over to a welder/machine shop, since I don't know how to tig properly.

Edited by maozebong
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