Bump stops

[Gunnibronco]

I'm setting up my front bump stops.

I had been using the typical bump stops sold for a lifted EB:
https://tomsoffroad.com/parts/66-77-for ... bump-stops

One is pretty chewed up from landing on an uneven place on my front axle after swapping in my full width D44.

I have a set of F250 rear bumps I pulled off a truck at work when installing air bags.
https://www.ebay.com/itm/184177700335?h ... Sw4OFeTY6V

I know they won't be as soft, and don't seem like they will give much at all. But they will do the job. I also pretty much know where they will stop everything from moving so they will be easy to locate.

Does anyone think this is this going to cause problems? Stopping everything with less give than the old stops?

I don't expect to be doing high speed/jumps/etc. I hope they will mostly be used at low speed/crawling, although we all know there will be surprises.

I suppose I can mount them and if I jar my eyeballs out I can always swap them.

[Justin]

I suppose I can mount them and if I jar my eyeballs out I can always swap them.

This.

[Gunnibronco]

I suppose I can mount them and if I jar my eyeballs out I can always swap them.

This.

I googled a bit and ended up reading a few threads on Pirate about solid bump stops. I realized I was likely to end up changing them out.

I had a meeting in Reno at our store and it's only a few blocks from the Summit Racing warehouse & store in Sparks so I picked up a set of bump stops they had in stock.

https://www.summitracing.com/parts/dys-ku09016bk

I'm building brackets and trying to figure where to set them. I'm really not sure how much they will compress under load. I'm setting them fairly high, and I'll add a spacer if they compress too much. It will be easier than cutting them off and mounting them higher.

Just before the radius arms hit the frame, I have a little interference between the drag link and the frame crossmember at full stuff with the steering turned sharp right. I'm considering cutting off the bottom of the crossmember and plating it to get that little extra. Probably after the Rubicon.

[landshark]

I think Crawlercreations cut his cross member and plated it as well. He hasn’t had any issues.

[Gunnibronco]

I think Crawlercreations cut his cross member and plated it as well. He hasn’t had any issues.

Thanks that's good to know.

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[landshark]

also, i know this isn't super helpful because we have different setups, however i went with those bumps in the rear of the racer you linked from summit - which are essentially the same ones sold by the bronco vendors and I haven't had any issues. They are definitely hitting the axle tubes but not excessively, i totally guessed what i needed as far as bumps out back as I technically have a 2.5" lift but I think my springs being a custom pack set for 500lb over stock probably absorb most of the bump out back...

You will defiantly know when you hit the rear excessively and if you are using more than they can handle as they will eventually start to come apart like they are on my red one (same bumps). They have lasted 4-5 years tho...

[Gunnibronco]

also, i know this isn't super helpful because we have different setups, however i went with those bumps in the rear of the racer you linked from summit - which are essentially the same ones sold by the bronco vendors and I haven't had any issues. They are definitely hitting the axle tubes but not excessively, i totally guessed what i needed as far as bumps out back as I technically have a 2.5" lift but I think my springs being a custom pack set for 500lb over stock probably absorb most of the bump out back...

You will defiantly know when you hit the rear excessively and if you are using more than they can handle as they will eventually start to come apart like they are on my red one (same bumps). They have lasted 4-5 years tho...

For the rear I'm using my old extended rear bump stops that have been in the truck for 20+ years. I just moved them back to match the axle. It looks like they have never been touched by the axle. I'm not as worried about them. From my measurements (I disassembled the spring pack I'm using and flexed it with just the main leaf) it will probably allow the springs to flex slightly past flat. Hopefully they don't self destruct or invert. I'm planning to replace them with a custom set of springs soon, and I'll revisit bump stops and shocks at that time. Right now it's just to get through the Rubicon.

I'm more worried about the front end bump stops being right. I don't plan much revision and don't want to bend anything. I could see the tie rod/crossmember and radius arms/frame interference problems.

[Gunnibronco]

Fit everything up. Set the bump stops with about 1" before max stuff. I'll probably have to add a spacer but it worked well and jacking up on the axle the bump stop wouldn't compress to where the radius arms or steering linkage hit anything.

[Mitche11]

Thanks for the pic! Looks like that will work great!


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