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-   -   How I fixed the rear frame rust by the shackles on my YJ (http://www.jeepforum.com/forum/f12/how-i-fixed-rear-frame-rust-shackles-my-yj-1014373/)

0llllll0 04-17-2010 06:21 AM

How I fixed the rear frame rust by the shackles on my YJ
 
I bought a 92 YJ for a deal because the rear section of the frame at the shackles was rusted on both the drivers and passenger sides. I took the gas tank out and started grinding... Once I got everything cleaned up I started measuring and designed ( using Catia V5 ) a set of 1/8" plates to go over the rusted area. With the 1/8" plates you can still use the stock bushings and shackles. The steel sleeve that the shackle bushing fits into actually sticks outboard of the frame about an 1/8" on both sides of the frame so it works out perfect... I also incorporated the factory frame holes / slots, but I over-sized them so there was room to weld the plates to the frame in those areas as well as the edge of the plates. When I had the design complete, I had the plates laser cut and started welding. Here are some pics of the results from start to finish.

http://i288.photobucket.com/albums/l...r/SD530020.jpg

http://i288.photobucket.com/albums/l...r2520frame.jpg

http://i288.photobucket.com/albums/l...r/SD530088.jpg

http://i288.photobucket.com/albums/l...r/SD530090.jpg

http://i288.photobucket.com/albums/l...r/SD530100.jpg

http://i288.photobucket.com/albums/l...r/SD530096.jpg

http://i288.photobucket.com/albums/l...r/SD530111.jpg

http://i288.photobucket.com/albums/l...r/HPIM0671.jpg

http://i288.photobucket.com/albums/l...r/HPIM0669.jpg

http://i288.photobucket.com/albums/l...r/HPIM0666.jpg

After I completed my Jeep, my brother in-law noticed his frame was bad in the same area, so we fixed his the same way, then another friends and another friends and so on and so on... The repair on my jeep is going on 2 years now and it's held up great!

Ken
jeepoholic@me.com

jeepinmichguy_ 04-17-2010 06:46 AM

very nice!

Area.3.Fiftyone 04-17-2010 07:11 AM

Nice job.

There is one thing that I would like to mention though.

You should never weld a plate directly horizontal (perpendicular to the rail). It will lead to stress cracks in that area. You should fish mouth the edges of the plates like this: < > instead of having them straight up and down.

:D

prflyer 04-17-2010 08:06 AM

nice, this is in my immediate to do's on mine!

0llllll0 04-22-2011 07:19 AM

Quote:

Originally Posted by prflyer (Post 9300774)
nice, this is in my immediate to do's on mine!

:thumbsup:

CALUfootball64 04-23-2011 01:47 PM

Mine needs done.immediately also any way I can get dimensions and plans off of you?

giggityjeeper 04-23-2011 02:07 PM

you didnt cut the bad **** out??

just welded over it??

man I cut the **** out and replaced it.... couple years that will just rot out from the inside...

0llllll0 04-29-2011 02:00 PM

Quote:

Originally Posted by giggityjeeper
you didnt cut the bad **** out??

just welded over it??

man I cut the **** out and replaced it.... couple years that will just rot out from the inside...

It's been 3 years now and it's holding great! I make sure and keep it clean back there by flushing the frame out with a garden hose. But other than that it is nice a solid .

0llllll0 02-02-2012 10:23 AM

http://www.jeepforum.com/forum/f130/...ngler-1467549/

srwilson8074 02-02-2012 10:34 AM

Purple Power has a rust inhibitor and is a liquid that can be sprayed with a spray knozzle inside the frame. It turns the scale to a hard black finish. Get a snake eye and look inside the frame and if it is coated good foam fill it. get the expandable stuff and cut off the excess. Does anyone know what a new frame goes for "aftermarket" for a 88-95 wrangler??

KSRick 02-02-2012 12:54 PM

Quote:

Originally Posted by srwilson8074 (Post 12973783)
Purple Power has a rust inhibitor and is a liquid that can be sprayed with a spray knozzle inside the frame. It turns the scale to a hard black finish. Get a snake eye and look inside the frame and if it is coated good foam fill it. get the expandable stuff and cut off the excess. Does anyone know what a new frame goes for "aftermarket" for a 88-95 wrangler??


I found one listed at $2,395.99.

srwilson8074 02-02-2012 01:12 PM

I think I can custom build one cheaper it like $500.00 for material, US made steel. Got to check with legal and see if I can do this. Thanks

monkeyhouse 02-02-2012 02:19 PM

Quote:

Originally Posted by srwilson8074 (Post 12974780)
I think I can custom build one cheaper it like $500.00 for material, US made steel. Got to check with legal and see if I can do this. Thanks

Put me down for one!

0llllll0 01-25-2013 01:59 PM

If I could buy a new YJ frame for $500, I would build a new Jeep for sure !

NHfireYJ 01-25-2013 02:03 PM

Quote:

Originally Posted by srwilson8074 (Post 12973783)
Purple Power has a rust inhibitor and is a liquid that can be sprayed with a spray knozzle inside the frame. It turns the scale to a hard black finish. Get a snake eye and look inside the frame and if it is coated good foam fill it. get the expandable stuff and cut off the excess. Does anyone know what a new frame goes for "aftermarket" for a 88-95 wrangler??

Paid $500 for a GREAT used frame. WORTH IT

ALSO check out Auto Rust Technologies replacement frame parts. Q tec has them... Thats How I started.... but eventually the rust won... CURSE YOU METAL OXIDATION!!!


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