Flexplate to convert bolts

Hey All,

So driving home and I hear marbles in the blender. Get home and look under I have a blot sticking out of the inspection cover on the the bottom of the TH400.

So I'm guessing I sheared a bolt. I just got out of a multiday hospital stay so I haven't been able to get under there to verify.

Are there special bolts used to bolt the converter to the plate? If so where can they be gotten.

I have another day or so before I'm mobile enough to crawl under there so trying to gather as much info as possible.
Looks like 3 nut/bolts I plan to replace all 3. only damage i see from the out side is 2 holes in the inspection plate. I hope no teeth of bell housing damage occurred.

I have never been in there so no idea how much room I have to work.
Can it been done with jeep on the ground and just removing the inspect plate?

Thanks!

 

Absolutely. They are a special bolt but all GM used them so anything up to late 70's will work. After that they went metric. They should be just bolts, no nuts, however some convertors didn't have threaded nubs welded on and did use nuts and bolts but quite likely yours will be just bolts. THESE will work although stock bolts don't use a washer, the bolt sometimes has a shoulder as part of the bolt instead.

 

go to your local parts store and do it right, do not want to use any old bolt and or nut combo, unless you take them to a good hardware store and you can match them. If you use the wrong ones you can and may run into trouble, like bolt hitting torque converter and not getting it tight enough causing it to back out, or if the bolt is too small for the hole there will be play in the house, not good either. Or go to your local wrecking yard if you have one or someone that has one in the back yard and get some old bolts, used ones work just fine too.

 

Ok so still feeling blah so wasn't able to get cover off but I was able to at least get a few pictures. I'm afraid that it isn't the converter bolt but the flex to crank bolt. So It would seem the jeep is retired for the winter.

The inspect cover bottom.


Another


The bolt head


What's left of bolt side.

 

Nope, you're still good, that would be an early style convertor bolt.

 

If its a 3/8 bolt, it is for the converter. If it is a 7/16" bolt, it is from the flexplate to crank.( If it fits a 9/16 wrench it is a 3/8 bolt.) Your local FLAPS probably sells a package of grade 8- 3/8 by 1/2" long bolts in a set of 3 with williams washers.( williams is a expensive way to say thick washers that wont bend.)