jeep_pieces Posted March 22, 2020 Share Posted March 22, 2020 The frame on my 91 jeep comanche rotted out. It was to the point it was easier to build a new complete frame from cab back than try to repair existing rust. The following is the journey up until now. This pic is the before I am still working towards the after pic. Link to comment Share on other sites More sharing options...
jeep_pieces Posted March 22, 2020 Author Share Posted March 22, 2020 59 minutes ago, jeep_pieces said: The frame on my 91 jeep comanche rotted out. It was to the point it was easier to build a new complete frame from cab back than try to repair existing rust. The following is the journey up until now. This pic is the before I am still working towards the after pic. The center console I started before the frame rotted out Link to comment Share on other sites More sharing options...
jeep_pieces Posted March 22, 2020 Author Share Posted March 22, 2020 The frame was crumbling in my hands Link to comment Share on other sites More sharing options...
jeep_pieces Posted March 22, 2020 Author Share Posted March 22, 2020 The replacement frame before welded on truck. 3 X 5 X 3/16 box tubing air tight. I can use it as on board air if needed. Link to comment Share on other sites More sharing options...
jeep_pieces Posted March 22, 2020 Author Share Posted March 22, 2020 Link to comment Share on other sites More sharing options...
kansashogan Posted March 23, 2020 Share Posted March 23, 2020 Wow, good job! Link to comment Share on other sites More sharing options...
Limeyjeeper Posted March 23, 2020 Share Posted March 23, 2020 That is incredible!! That frame is going to stiffen up the unibody big time!! Link to comment Share on other sites More sharing options...
AZJeff Posted March 23, 2020 Share Posted March 23, 2020 Nice work, but one comment: sealing up boxed sections of a frame is a VERY bad idea. Moisture that is inside the frame at time of welding can now just sit there and go to work creating rust. This is one of the big issues that plagued early unibody cars. It's MUCH better to have vent holes, and plenty of them. Ideally, they should be at least 1/2 inch in diameter, and located on bottom surfaces where water can run out.. Just make sure you locate them where wheel splash won't force road dirt mixed with water into those vent holes. I know this sounds very counter-intuitive, but you will have FAR less rust on frame with plenty of open holes for air circulation that you will on one that is all sealed up. Link to comment Share on other sites More sharing options...
derf Posted March 23, 2020 Share Posted March 23, 2020 I'd agree with having the vent/drain holes in the frame if you can. Also, you can get spray cans of rust proofing paint specifically set up with a long flexible nozzle designed to paint the inside of tubing. They're great for painting the inside of frames that have holes like factory frames do. One example: https://www.amazon.com/Eastwood-Internal-Coating-Aerosol-Nozzle/dp/B00MROX1J4 Link to comment Share on other sites More sharing options...
jeep_pieces Posted March 29, 2020 Author Share Posted March 29, 2020 box frame installed. Link to comment Share on other sites More sharing options...
jeep_pieces Posted March 29, 2020 Author Share Posted March 29, 2020 Motor mounts for 360/5.9L. Also little exhaust work Link to comment Share on other sites More sharing options...
jeep_pieces Posted April 1, 2020 Author Share Posted April 1, 2020 Just finished lower part of air box to hold factory air filter. Link to comment Share on other sites More sharing options...
jeep_pieces Posted April 8, 2020 Author Share Posted April 8, 2020 Just finished lower part of air box to hold factory air filter. Link to comment Share on other sites More sharing options...
jeep_pieces Posted April 8, 2020 Author Share Posted April 8, 2020 Finished waiting on latches to come in Link to comment Share on other sites More sharing options...
neohic Posted April 8, 2020 Share Posted April 8, 2020 Looks great! Link to comment Share on other sites More sharing options...
89 MJ Posted April 8, 2020 Share Posted April 8, 2020 Are you keeping fuel injection? Link to comment Share on other sites More sharing options...
jeep_pieces Posted April 8, 2020 Author Share Posted April 8, 2020 Already wired in. Just got computer programmed. The goal is to make look as if it could have come from the factory. Link to comment Share on other sites More sharing options...
89 MJ Posted April 8, 2020 Share Posted April 8, 2020 1 hour ago, jeep_pieces said: The goal is to make look as if it could have come from the factory. I appreciate that. Link to comment Share on other sites More sharing options...
JMO413 Posted April 9, 2020 Share Posted April 9, 2020 I absolutely love this build! That fact that it will look factory is amazing. Good work! Link to comment Share on other sites More sharing options...
MontanaManche Posted April 9, 2020 Share Posted April 9, 2020 Looking good! My Dakota has the same motor and i love it. Link to comment Share on other sites More sharing options...
jeep_pieces Posted April 25, 2020 Author Share Posted April 25, 2020 Duel tanks to feed 5.9L are ready for leak test. Then cut in holes for roll over vents and off to powder coat. Link to comment Share on other sites More sharing options...
knever3 Posted May 3, 2020 Share Posted May 3, 2020 Wow fantastic work! Someone mentioned about the moisture in your excellent X frame being sealed. If you put a Schrader valve on it and inerted it with Nitrogen or any inert gas it would not rust either. Great job! Link to comment Share on other sites More sharing options...
Sir Sam Posted May 3, 2020 Share Posted May 3, 2020 Before it was welded to the cab having that whole section galvanized would meant it would never rust again. Link to comment Share on other sites More sharing options...
boxyjeep Posted May 6, 2020 Share Posted May 6, 2020 How will you get the gauges to work, specifically the tach? Link to comment Share on other sites More sharing options...
jeep_pieces Posted May 6, 2020 Author Share Posted May 6, 2020 Orginal Tach works and accurate Used oil pressure sending unit for 96 XJ Used fuel sending unit out of 96 XJ mounted it to 98zj fuel assembly Only guage left it temp sensor, don't know it I want it in motor or in radiator still working on location Link to comment Share on other sites More sharing options...
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