I'm not a Jeep guy but the frame rot in that spot on YJ's seems fairly common, and I know of a couple of guys who have had to fix this issue.

Here is a picture from a YJ that 78Buford bought awhile back....look familiar?:

http://i47.photobucket.com/albums/f1...d/IMG_2671.jpg

Yes, this thread is multiple months old...just saw it a few minutes ago. As common as YJ's with rotten frames are, I doubt this will be the last time this thread is viewed.

There are a few other pictures of the rot and the repair at the bottom of this page:


http://ohio4x4.fourwardmomentum.com/...?t=4885&page=2

Roy

Jeep frames are thin, if I had it to do over I would have built my own frame. Since the one I have is a 1/4 inch it should last a long while. I don't think it would be too hard to build one.

I have fixed two frames in that area , a 93 and a 90 . The 93 frame aslo was very bad under the steering box ( that was not fun !! )

I guess Tony and I were just lucky...

Where was your aftermarket frame from GPER?

For me, it won't matter soon, that whole rear section is getting the axe (grinder).

On a CJ the spring hanger is bolted to the under side of the frame and not inside it like a YJ. It is pretty easy to just cut the YJ spring mount out of the frame and then plate the frame solid. Then drill two holes and mount CJ style spring hangers. You can also just pedrill the holes and weld nuts to the inside of the plating like Jeep did on the CJ's when they were new. It also gives about a 1 1/2" to 2" lift to the back. A little longer shackle in the front will match every thing back up.

It's a Matkins level III, their customer service sucks. I should have just bought a good welder then. Dealing with them was the biggest mistake I have made.

http://i165.photobucket.com/albums/u...hackles004.jpg

any updates ?