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Old May 25th, 2009, 10:28 PM   #1
BigBert
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Default 85 k10- Frame crack at shock RR shock mount

So, I recently noticed that my truck had developed a crack at the shock mount location on the frame. I was wondering what the best fix would be. whether it's welding the piece back in, or breaking down and buying a shock inboarding kit.
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Old May 25th, 2009, 10:48 PM   #2
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i'd just weld a piece of metal in there. if your a good welder it'll be strong enough.
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Old May 25th, 2009, 11:09 PM   #3
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I would cut out a little square section and then fill it in with a new section and redrill a hole. You need to cut out the whole part that is cracked otherwise the crack will continue to grow. Bevel the edges of your filler piece and weld both sides preferably with an ARC welder to ensure real deep penetration.
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Old May 25th, 2009, 11:15 PM   #4
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The cracked section will come out, and it appears that there is no more cracks upon close inspection. Would it be feasible to weld the chunked out section back it after v-ing it out then angle grinding it smooth after welding it up.
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Old May 25th, 2009, 11:17 PM   #5
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yes

cut it out. make a new square area to weld in its place. bevel both new peice to be welded in. id say it be plenty strong enough if u just welded the one side but if you can do both then y not.
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Old May 25th, 2009, 11:19 PM   #6
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Scrap the truck. Just kidding. Grind Vs in the cracks and weld everything up. Grind flush with the surface and reuse.
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Old May 25th, 2009, 11:23 PM   #7
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Scrap the truck. Just kidding. Grind Vs in the cracks and weld everything up. Grind flush with the surface and reuse.
The scrap the truck part sounds all too familiar to me. But i could never abandon Big Blue.
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Old May 25th, 2009, 11:28 PM   #8
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I would not reuse anything...cut out a good size piece and replace with new steel. The frame cracked there for a reason and that reason is the metal was fatigued...so replace. I would even go as far as to weld another piece of steel over the patch job just for extra strength but thats just me.
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Old May 25th, 2009, 11:39 PM   #9
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Quote:
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I would not reuse anything...cut out a good size piece and replace with new steel. The frame cracked there for a reason and that reason is the metal was fatigued...so replace. I would even go as far as to weld another piece of steel over the patch job just for extra strength but thats just me.
I would guess that the frame cracked there because the bolt was not secure. This caused the section of frame by the bolt to "flex" and fatigue. Since I am an inherently lazy SOB, I would assess whether the repair could be done safely by welding before taking the time to replace that section of metal.
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Old May 26th, 2009, 12:04 AM   #10
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the bolt had some play in it. that's why i think it chunked out the section also. I too am a lil on the lazy side that's why I'm leaning towards welding the chunked out piece back in and calling it good.
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Old May 26th, 2009, 12:08 AM   #11
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if you going to do something, especially on a nice truck that you want to take care of, why not do things the right way first, you'll feel better about it

cut out a square, cut you vs and weld in the new steel on both sides and grind flush. like eveyone else says lol
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Old May 27th, 2009, 07:39 AM   #12
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thanks for the advice guys
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