Hi, i have a 92 wrangler 4.0 with an automatic trans. This is the 3rd time I lost the bolts that hold the mount to the trans housing. The first time, one broke off in there and I got it out. Second, and this time, they're gone. The tranny slides sideways and the U joint beats up my muffler heat shield. The noise was really loud. Any clues as to why these bolts keep coming out? I'm also using lock washers. Thanks <img src="/forums/images/graemlins/confused.gif" alt="" />

You may have a bad tranny mount or engine mounts or an out of balance driveshaft. I have seen the wrong bolts used in places where they fall out all by themselves..
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

Double check and make sure you have the correct size bolts. When you get replacements, use a torque wrench and LocTite.

hi bigjim, if the drive shaft was out of balance, wouldn't I notice a vibration? Motor mounts were changed.I was also thinking about loctite but I figured the bolts falling out were better than the stress cracking the mounting part on the tranny. It looks kind of cheesey. I got the bolt size from the factory maintenance book, but they wiggle slightly until they go further up in their bore. Even if they're wrong, the originals took off on me. Actually, the trans bolts that mount to the underpan(crossmember) are at the back most position of the slots(alomost bindingat an angle until tightened). Could everything have shifted backwards?I guess tomorrow I'll take it apart again and try loctite.