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View Full Version : Bumpstop Tech



lgottler
July 20th, 2006, 06:19 PM
OK, lets talk about bumpstops and whats what...

The various "progressive" stops really interest me. Your typical TJ stops seem more of a short travel stop than a progressive " slow down" device. The tapered YJ ones do seem more progressive in their design, but still a pretty solid stop.

Types:

Your H3 bumpstops... (want more info!)

http://www.glfwda.org/forums/uploads/post-209-1152018806.jpg

Your TJ bumpstops...

http://www.wanderingtrail.com/images/2003_TJ/Buildup/Long_Arm/Issues/Dsc01697.jpg

Your YJ bumpstops....

http://www.jeepaholics.com/tech/SOA/images/bumpstop1.jpg

Your XJ rear extended Bumps....

http://macsspring.com/website/images/KJ0912~1.jpg

Your aftermarket ones....

http://www.bjsoffroad.com/cartgenie/images/small/13-5003.jpg
http://www.4crawler.com/4x4/CheapTricks/Images/Phase-III/F_BumpStop01.jpg

Your aftermarket "long travel" ones...

http://www.energysuspensionparts.com/prodimages/ES99104_lg.jpg

JohnnyJ
July 20th, 2006, 07:35 PM
stock rear cherokee look kinda like the aftermarket long travel ones.

kb8ymf
July 20th, 2006, 10:27 PM
they are actually 2003-06ish chevy 1/2 ton pickup rear bump stops.

i will email you the file tomorrow

ganz
July 21st, 2006, 09:37 AM
Hello,
you say you want more info on the H3 stops? what kind of info are you lookin for? the rate or size or how the are used. ????? Front or rear ones?

Ganz.......

lgottler
July 21st, 2006, 11:17 AM
I thought they were H3 bumpstops, but they're not. I like the look, it seems like the resistance is nice and progressive, each rib hits the one above it and gets harder and harder to compress.

I am thinking of trying a 2 stage bumpstop. Put one that will have more travel in it, to slow things down, then a harder one I would use to stop the axle....

I'd like to see how they are mounted. Threaded or do I need to press them into something...also, the longest one I could find would be best.

Lucas

ganz
July 21st, 2006, 02:28 PM
The production jounce bumpers are held into the cup by small serations on the outer edge of the cup facing inward. the cup is welded to the frame above the axle only on the rear. the front ones are somtimes bolted on depending on the truck. H2 or H3.
Ganz

95geo
July 21st, 2006, 02:42 PM
<div class='quotetop'>QUOTE(ganz &#064; Jul 21 2006, 02&#58;28 PM) 15963</div>

the cup is welded to the frame above the axle only on the rear. the front ones are somtimes bolted on depending on the truck. H2 or H3.

[/b]

thats why we didnt use h3 bumps, the cup is welded to the frame. it took quite a bit of searching to find the right ones that bolted on..... 1/2 ton p/u rear