CK5
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transmission
- Thread starter Smith12b
- Start date
Don't do that.
First I am assuming you have a 700R4, and that the bolts that hold the tcase adapter on to the transmission are the one that stripped.
If that is the case, get longer bolts, there 2 blind holes and 2 that can go thru.
I got slightly longer ones for the blind holes where the thread was still good, and the others I went longer and put a nut on the other end.
I will go get some pics tomorrow when there is light.
I've never done it in that specific application, but I've used the "heli coil" inserts on many occasions (motorcycle and atv) and generally they are as strong or stronger when used correctly.
So my answer would be ,yes, you could use an insert.
So my answer would be ,yes, you could use an insert.
For the sake of avoiding confusion by incorrect terminology -
The "bellhousing" is the flared part of the trans shell that touches the engine. The end of the shell that touches the transfer case adapter is probably best referred to as the "tail".
Edit: the post that prompted this reply has been deleted.
The "bellhousing" is the flared part of the trans shell that touches the engine. The end of the shell that touches the transfer case adapter is probably best referred to as the "tail".
Edit: the post that prompted this reply has been deleted.
Check out if there are threads left as Iceman said as that might work, but you will be fine with heli-coils in there. I HATE to contradict Iceman, but due to a screw up, my 700R4 has been running with heli-coils in the back of the trans for 37K with a 462BB ahead of it. MAKE SURE THAT YOU GET THE CORRECT PARTS AND DRILL BIT!!! If you can't find long inserts then you will have to stack two, which is tricky. Lots of aftermarket aluminum parts have inserts in the threads for durability. You could use some blue loctite on the inserts but be careful not to use too much or the insert could lock onto the bolt and come out if you need to pull the T-case.
I don't have a ton of experience fixing aluminum but I would think a Heli-Coil would be best.
do you know i can find the heli-coils and what drill bit i would need for it
Some parts stores might have them like NAPA, but I would bet you will need to find a good hardware store or Fastenal or the likes. I believe they are metric, but check it out as my memory,,,,, then the inserts should tell what bit. I would say look and see if Iceman's idea will work first though, I have done that on other repairs.
The holes are metric if this is a 700R4, the size is 10x1.50 , if it is a 350 trans the holes are 3/8. We use heli coils every day in the assembly of transmissions, it is about the best way I know of to repair damaged aluminum threads to "better than new" condition.
Helicoils will work fine, but what I said takes less work, and less time, and the ones that go thru will be much better having the nut on the other end, it wil never strip again.
I would say if it's a new tranny do both.
I would say if it's a new tranny do both.
Helicoils will work fine, but what I said takes less work, and less time, and the ones that go thru will be much better having the nut on the other end, it wil never strip again.
I would say if it's a new tranny do both.
Thanks for the advice i am going to work on it today I think I will spend the extra money and do both make sure it doesn't happen again
George_Pimpdaddy
1/2 ton status
Used Heli-Coils on a friends 85 K5 before on the exact same issue and its held up great!
