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Tranny-Adapter bolt hole stripped out !

Discussion in 'The Garage' started by bigmack, Nov 5, 2003.

  1. bigmack

    bigmack 1/2 ton status

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    I looked under my truck yesterday and saw a small puddle of ATF. Under closer inspection I noticed the lower drivers side bolt that holds the adapter to the tranny was backed out. When I tried to tighten it up, guess what, the threads are stripped out. So my question is, has anyone else had this happen ? And how did you fix it. Do I just drill and tap the hole to a larger size or try to put a Heli-Coil in it ? I'm a little affraid of drilling the hole larger with it being aluminum. Just looking for advice and experiences. Thanks.
     
  2. cegusman

    cegusman 3/4 ton status

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    I would try a Heli-Coil first, if that doesn't work then drill and tap it.
     
  3. doctor4x4

    doctor4x4 1/2 ton status

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    J B weld a stub in it
    if all else fails
     
  4. bigmack

    bigmack 1/2 ton status

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    Thanks for the input. Now I just need to drop the t-case so I can get in there to it /forums/images/graemlins/tongue.gif.
     
  5. BranndonC

    BranndonC 3/4 ton status

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    i hear ya! the same thing happened to me a month ago, but ALL FOUR stripped out! I tried the heli-coils, but they were too short, so i ended up tapping the holes up to 1/2 inch and putting new bolts in there. it worked fine, but it was a pain dropping the t-case 3 times to get it finally fixed... Use RTV also, it might help. /forums/images/graemlins/thumb.gif
     
  6. bigmack

    bigmack 1/2 ton status

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    Thanks for the reply. Did you have to go up to 1/2"? I was thinking 7/16". Also, did you just drill out the holes on the adapter to accept the larger bolt or were they allready big enough ? Man I want to get this right, over the past year or so I have had alot problems breaking adapters, and everybody knows what a major PITA it is to find a 205/350 adapter these days.
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

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    My friend has a 350/205 adapter if you should ever need another.
     
  8. bigmack

    bigmack 1/2 ton status

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    Thanks, I'll keep that in mind.
     
  9. jeffro

    jeffro 1/2 ton status

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    I don't like heli-coils. Keen-serts are the best you can get. You want to be able to service it without replacing the helicoil every time use the keen-sert.
     

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