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Old 08-07-2007, 05:37 PM   #1 (permalink)
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Mounting sliders to a C-channel frame

Bolt on or weld on?

I've only put sliders on Toyotas and unibody jeeps and just plated the frame and welded them on. Getting ready to put some sliders on my ranger and am not sure wether to bolt them on or weld them to the frame. A buddy who races desert told me not to ever weld on the Ford c-channel frames. Supposedly the frames are heat treated and welded area will be weakened. Yet I have seen people welding the crap out of ranger/fullsize ford frames with what seems to be good results.

I'd like to just weld them on, but dont mind taking a little extra time to drill some holes if it is going to make a difference.

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Old 08-07-2007, 05:48 PM   #2 (permalink)
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Weld on.
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Old 08-07-2007, 06:04 PM   #3 (permalink)
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Not sure about the heat-treating, but the ones i made are bolted on with a backing plate.
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Old 08-07-2007, 06:21 PM   #4 (permalink)
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Originally Posted by mjlogan88 View Post
Bolt on or weld on?

. A buddy who races desert told me not to ever weld on the Ford c-channel frames. Supposedly the frames are heat treated and welded area will be weakened.
He's correct in that you shouldn't weld them on, but for the wrong reason.

The frames aren't heat treated (in any way that I can see anyway), but they do flex a lot.
If the rigid slider is welded to it, as things try to flex, it can eventually crack the frame where it's welded.

I would bolt them on.

Here's how I did mine (click for big):



(yeah, that front mount is a bit feeble (too lazy to redo it better), but so far it hasn't let me down (I can still easily do the Hi-Lift under it).
The middle mount on the bodymount bracket is VERY rigid though (easily making up for any feebleness of the front one). There is a huge crossmember that runs right behind there to the other side. It deflects probably less than " there when jacked up by it.
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Old 08-07-2007, 06:45 PM   #5 (permalink)
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noob question but can't u do both?
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Old 08-07-2007, 10:17 PM   #6 (permalink)
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Doing both defeats the purpose of the each method. However, as a noob you CAN weld and bolt the sliders on. When you need to remove them to repair them, or repair your now cracked frame, be sure and use the big grinder, its much quicker than simply unbolting things.

The whole "If the rigid slider is welded to it, as things try to flex, it can (and IMHO, will) eventually crack the frame where it's welded" statement totally answers the question as to why you would be better served by bolting the sliders on.

My .02 worth, if you do listen to good advice and bolt them on, don't go cheap on your fasteners. I would personally use at least 4 3/8" bolts on each plate, and as I'm a stickler for bolts, I'd go buy new grade 8's. But if you want to bolt your sliders on with 2 1/4" bolts you found in the bolt set you bought at harbor freight, you CAN do that too. Don't be surprised when those bolts break on you while you try to lift the truck with that hi lift
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Old 08-07-2007, 10:20 PM   #7 (permalink)
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just weld it.
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Old 08-07-2007, 10:29 PM   #8 (permalink)
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weld it - do it right with bracing and it will not crack. but bolting will work too .
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Old 08-07-2007, 10:40 PM   #9 (permalink)
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jb weld it
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Old 08-07-2007, 10:41 PM   #10 (permalink)
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Box the frame, then weld 'em on...

Do it once, do it right, & avoid the frame flex.
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Old 08-08-2007, 12:47 AM   #11 (permalink)
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its all about frame flex
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Old 08-08-2007, 11:27 AM   #12 (permalink)
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its all about frame flex
shit thats where half my flex comes from. better bolt them on.
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Old 08-08-2007, 11:49 AM   #13 (permalink)
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Originally Posted by 4x4junkie View Post
He's correct in that you shouldn't weld them on, but for the wrong reason.

The frames aren't heat treated (in any way that I can see anyway), but they do flex a lot.
If the rigid slider is welded to it, as things try to flex, it can eventually crack the frame where it's welded.

I would bolt them on....
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Old 08-08-2007, 12:10 PM   #14 (permalink)
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Quote:
Originally Posted by mjlogan88 View Post
shit thats where half my flex comes from. better bolt them on.
ha! mines about 75% frame flex
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Old 08-08-2007, 12:14 PM   #15 (permalink)
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I would have to agree with the bolt-on statement Logan. When I would jump the parts trucks on old Camden Ave I could see the frame deflect at least a few inches on impact.

I would definitely bolt sliders to a c-channel frame. You could box it or add some rigid through-mount cross members, however that defeats the cheap build up concept.
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Old 08-08-2007, 01:35 PM   #16 (permalink)
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Quote:
Originally Posted by mjlogan88 View Post
Bolt on or weld on?

A buddy who races desert told me not to ever weld on the Ford c-channel frames. Supposedly the frames are heat treated and welded area will be weakened.

I'd like to just weld them on, but dont mind taking a little extra time to drill some holes if it is going to make a difference.
what does pete know?

hes the shock god ... not the frame god
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Old 08-08-2007, 02:03 PM   #17 (permalink)
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what does pete know?

hes the shock god ... not the frame god
so how would you "do things right"?

weld them on by hooking the ground to the axle and fry the brake lines?
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Old 08-08-2007, 06:23 PM   #18 (permalink)
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Bolt them on, you never know when or why you might need to remove them. I have some pics in my build thread of my sliders and how they are attached(I think). I used a plate under the lower leg of the channel, and some angle brackets that I welded to the frame.
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Old 08-08-2007, 08:48 PM   #19 (permalink)
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Weld it and forget it.
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Old 08-08-2007, 10:18 PM   #20 (permalink)
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Bolt them on, you never know when or why you might need to remove them. .
same reason I bolted mine on.
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Old 08-09-2007, 07:37 AM   #21 (permalink)
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Bolt them on, you never know when or why you might need to remove them.
This is what I thought with my old heep, and I never took them off over the course of about 5 years. I dont think they would have come off, though, they were so mashed up into the unibody sheetmetal

And I appreciate all the opinions. I think i'm going to bolt them on because I'm not sure what i'm going to do with the suspension right now. Loosening a couple bolts is going to be way easier than grinding for days if a link mount needs to go where the slider is.
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