The frame on my 93 yj is rusted by the back shackles and broke along with Other weak spots. Tried to find a welding shop or mechanic to put some autorust safety caps on but know one around me would weld a frame for liability reasons. So frame swap.
I have not done anything like this before, I've changed an axle on a Saturn before and some components ( alt. Water pump, etc) on older buicks.
My plan right now is to get the frame in 2 to 3 weeks, strip it, por15 both outside and inside. Then When weather warms take 2 weeks off to do the swap. I plan on changing bushings for body and motor mount and maybe shackles.
Are there any pitfalls I should avoid?
Any advice to give?
I don't have a garage and my driveway is gravel, I'm looking I to rent g a garage to do the swap in. Also I don't currently have access to a welder.
I had a issue getting the bolt out of my body mounts. If I were you I would look on craigslist or something and buy a mig welder and learn how to weld. It is not hard watch some youtube videos and practice. If some of the body mounts spin you will have to cut into your sheet metal to fix it and need to weld it back. If you learn to weld you could weld your own frame if you are comfortable and have a strong enough welder.
It's a big project, but if you are planning to keep the Jeep a while, it's worth it. I did mine in 2007 (I lived in NY state until 2011, jeep was always in the NE). You almost have to plan to swap out a lot more stuff in the process. Do new fuel and brake lines for sure, and new spring bushings. The main issue you will have is body mount bolts and some other rusted bolt on items.
Photo, tub on buddies hoist, drive train out. We unbolted old frame from axles, took it out, then added the new frame to the axles, then added the drive train, then tub.
I thought of doing the inside when I did mine on '07, but didn't. I figured the first frame took 15 years to get bad living in the NE at the time, so the next frame should be fine if taken care of at all. It's mud and dirt holding water that kills it more than just bare metal to the air. I just drilled two 1.5" holes in the far far back, the last inch of the frame. I figured if I got in some mud, or thought it dirty, I'd just park nose up on a hill and flush it out from the holes already in the front. Turns out, 5 years later I moved to New Mexico where rust is not an issue.
People rave about POR-15, but I just used Dupli-color Truck Bed Coating.