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Post by heepajeep on Mar 25, 2005 0:40:32 GMT -4
My wench does 6000lbs. It is supported by 3/8-16 x1 ¼ “ long, Grade 5 Bolts x 4. If I weld a plate onto my back frame, will this support 6000lbs force? What size weld do I require, and what size piece of metal?
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Post by tothewall on Mar 25, 2005 7:59:06 GMT -4
Thats a big-ass wench.
You should be using grade 8 bolts and would also be wise to bolt the plate to the frame as well.
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Sandboxcowboy
Jeeper
Oh yes, please tell me how deep that mud puddle was in beaver bank.....
Posts: 2,748
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Post by Sandboxcowboy on Mar 25, 2005 20:38:09 GMT -4
yes, bolt the winch to plate then bolt it to frame. Do not weld! Everything has a breaking point for reason!
If your welds hold beyond the strength of the bolts, then you have a good chance of pulling your frame outta whack!
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Creepy
Administrator 
Dartmouth
Posts: 18,718
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Post by Creepy on Mar 25, 2005 21:41:23 GMT -4
it's really all in the design.
there would be no issues welding a plate to the frame if it is a well concieved design.
on the other hand, some people should not be allowed to own welders and booger blob poor designs onto thier rigs.
you have to account for where the forces are going to be acting, and have the welds in the correct orientation to those forces.
maybe a pic or two and a better idea of what you are trying to accomplish would help, you could come up with a good design with help from the board here.
you should upgrade the winch bolts to grade8 for sure.
(5 slash marks on head of bolt, only a bit more expensive) grade 5 hardware is so common and soooo many different producers, the quality can really vary.
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Post by diablojeep on Mar 25, 2005 22:17:06 GMT -4
I'd want to know the quality of the said frame, before I started welding to it! Winches are seldom used on straight pulls. This results in amazing torsion being applied to any mounting surfices. It's pretty hard to beat having something welded as well as bolted with grade 8 hardware.
I for one will not tug on any hooks that are only welded on. I've seen weldes open up and peel away. It's also very nice to be able to remove said plate and winch. Now keeping that in mind I'd either tack weld the nuts or use some of the super strength loc-tite. It requires over 1000 degree's to release. Stops the dirt bags from ripping off the goods.
When you say what size piece of metal I'm assuming you mean thickness? If so you'll find a lot of mounting plates either made from gusited 3/16th or straight up 1/4 angle or plate. I always use Grade 8 nuts and large flat washers. The washers help stop the bolts from cutting into the plate. With 1/4 that should not be an issue. Finding 1/4 angle thats wide enough for the winch may not be possible.
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Post by heepajeep on Apr 6, 2005 21:28:24 GMT -4
I quess I was not very clear.
In the front, I cannot bolt the winch to a plate on top( Interference with all the non cool jeep stuff like a plow) so I was going to bolt the winch to the mid section and add a plate section underneath. I am hoping I have enough clearence with my stering box. This will allow me to cut a hole in center of bumber to pass cable. I think it will look very cool if I can accomplish this.
In the back, frame is rotten. The opinions im interested in receiving is, how would I repair the frame and add a tow hook that would be safe for 6000lbs+? I quess the my question has been answered sortof. First weld the frame then bolt a hook on? I suppose a good 2" weld on 2" of new plate on good frame would support it? Or should I go back 6" and weld in new stock? Im not very familiar with strength of welds! I quess I need to know how much weld I require to last longer than a grade 8 bolt?
Additionally were would I get grade 8 bolts. WA moirs was the only place I knew to buy bolts but their gone. The chain stores dont have them.....
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Post by projectnightmare on Apr 6, 2005 21:32:15 GMT -4
grade 8 bolts - Trans World Distributing in Dartmouth.
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