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carnage

Discussion in 'The Garage' started by surpip, Feb 4, 2006.

  1. surpip

    surpip 1 ton status

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    so it seems my truck likes to eat the top bolts on the adapter, going into the tranny. When i got the truck they were both broke, anfter the rubicon trip(i guess thats what did it) they are both broke again

    is there a good fix for this? this time they broke, i had replaced the tranny mount, so i am not shure what is causing this to happen.
    any ideas?
    700r4 to np241
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    usually the threads strip before the bolt breaks. it shouldn't be twisting thats breaking them or all 4 would be broke. what grade bolt are you using? 8.8 or 10.8?
     
  3. surpip

    surpip 1 ton status

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    i got them from the chevy dealer last time, so what ever is stock
    guess ill have to go with a higher grade this time
    always somthing
     
  4. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    they are probably grade 8.8, equilent to a SAE grade 5. probably wouldn't hurt to try a 10.8 bolt.

    do you have the support brace that goes from the tcase to the bellhousing bolt?
     
  5. surpip

    surpip 1 ton status

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    yep shure do
    guess ill step up to the higher grade, im shure they wont be easy to find out here
     
  6. MTBLAZER89

    MTBLAZER89 3/4 ton status GMOTM Winner

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    Mine stripped once. I drilled out the holes and helicoiled all four holes, and haven't had a problem since. I think it is just a weak design. Thats a lot of weight hanging off the back with only threaded aluminum holding it on.
     

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