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Old February 16th, 2012, 12:29 PM   #1
Jleach0696
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what steel to use for frame repair

im about to buy steel to reinforce the rear uniframe on my cherokee should i look for something specific or will any steel thats 3/16 be good? looking for 3x4x3/16 angle and 4" wide 3/16 plate
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Old February 16th, 2012, 05:45 PM   #2
Tab
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Plain 'ol A36 is fine. You don't actually have a frame anyway, you'll be welding to sheet metal formed and spot welded in various thicknesses.
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Old February 16th, 2012, 06:14 PM   #3
Haggar
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Yep. Its under 1/8" thick. I just did some colision repair on the front of my XJ.

People like to go heavy with steel, myself, I try to stick close to stock thickness. In an off road application, your frame (traditional or unibody) is going to flex. Making one section thicker than others can make one section that doesn't flex the same. Can lead to stress cracks at the transition points and frame sections nearby that now flex more.
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Old February 16th, 2012, 10:46 PM   #4
Jleach0696
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cant find angle the right size in 1/8 or even 3/16 is it ok to use plate an all 3 sides and put in crush spacers every foot or two. i think i will also be adding my 4 link cross member now while the cargo area is being replaced how thick should that be

Last edited by Jleach0696; February 16th, 2012 at 10:50 PM.
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Old February 17th, 2012, 05:37 AM   #5
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Plating is actually better than angle if you're trying to get it to fit up with an existing bent/formed area. Angle has a taper on the inside of the legs and a substantial radius in the inside corner making it fit not so tight.
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Old February 17th, 2012, 02:42 PM   #6
Spudy
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depending on where the fix needs to be check this out
http://www.tntcustoms.com/jeepcherok...ffeners-2.aspx
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Old February 21st, 2012, 03:09 PM   #7
Jleach0696
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needs to be repaired around where the gas fill hose goes through the frame so frame stiffeners wont work
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Old February 21st, 2012, 03:23 PM   #8
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I just did this exact repair on my xj. I used 16 gage. If I could get my Internet to work on my computer, I'd show u a picture. Good luck.
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