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XJ Rear Bumper Bracket Dimensions


neohic
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Does anyone have dimensions for the rear bumper brackets on a Cherokee? There's four bolts on each side holding the bumper on. When removed, it'll look like this...

 

Bumper_rBracket_oem_location.jpg

 

I need to throw together a bumper for a Cherokee friend but I'm trying to do this with a limited time window. Hoping to have all my ducks in a row before the main event, so to speak. Can someone help me out? Pretty much looking for dimensions on hole spacing and height/width tolerances if I were to make up a couple plates like these...

 

rbm.jpg

 

Any help is much appreciated. Thanks, dudes!  :cheers:

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Is it going to be used for recovery? If so you're going to want to do more tie in than those brackets and you'll use angle iron to use the stock mounting holes. The sheet metal the stock bumper mounts to really isn't strong enough to recover from.

 

You see that hole access to inside the frame rail between the bolt holes? Cut that section out to give you better access to the inside of the frame rail. Run 2x4 tube inside the frame rails. You'll need to notch it to clear the shackle hanger bolts and the gas tank fill tube and the gas tank fill tube. You'll drill holes in the bottom of the 2x4 where the holes in the frame rails are and weld nuts to the 2x4 so you can just slide the bumper in and bolt it right to the frame rails. You can just weld angle iron to the sides of the 2x4 and drill holes in it to utilize the stock bolt holes as well.

 

Mounts will look something like this:

 

6881.jpg

 

Pics aren't mine but mine are done the same way. Pics are from EricsXJ's website.

 

They're really simple and instead of pulling the sheet metal on that rear crossmember you're pulling is distributed across the entire rear end of the uniframe. And you're bolted into 16 spots instead of 8.

 

The holes in the frame rails are already there. All you have to do is slide the tube in and trace them with a sharpie and drill holes in the 2x4. Cutting the sheet metal out in the rear is super simple as well. It's recessed where you need to cut and a 3.5" grinder cutting disk fits perfectly in there. Takes all of about 30 seconds.

 

The area in red is what you'll cut out. It's a lot easier to see in person because the whole area is slightly recessed.

 

34gulqr.jpg

Edited by Motorcharge
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Ended up doing something similar to those. The measurements from Jay were spot on for getting the ball rolling. The bumper came out good, I think. The guy liked what he saw so he didn't want me to finish any of my welds. He also wanted it tucked really tight to the body. Plans are to tuck the rockers up behind the rear wheels.

 

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10653864_667848139980719_483144356469089

 

Overall, it's still a giant turd.  :laughin:

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He definitely needs to cut and fold the lower quarters now lol. I'm curious to see how you mounted it if you have pictures. Shackle tabs need to be beefed up but other than that it looks great.

 

The tow points tie directly into the mounting plates. The bumper itself started off as a piece of 6" channel while everything else is 3/8" thick. I usually double up my tow points making them 3/4" but you could already have no problem hanging the entire Jeep from just one of them.

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He definitely needs to cut and fold the lower quarters now lol. I'm curious to see how you mounted it if you have pictures. Shackle tabs need to be beefed up but other than that it looks great.

 

The tow points tie directly into the mounting plates. The bumper itself started off as a piece of 6" channel while everything else is 3/8" thick. I usually double up my tow points making them 3/4" but you could already have no problem hanging the entire Jeep from just one of them.

 

I was more thinking of them bending than ripping off or having a d ring shear them. There's no latteral support if they get pulled on from anything but a straight angle. Just a thought.

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