My Bump Stop Thread

[Mudderoy]

Something I've been needing to do for some time was to bump stop my rig.

After poking around on the Internet I found the best solution at GOJEEP!

Hockey pucks and metal tubing. Thanks to rguignard I have the square metal tubing and thanks to Sports Authority (http://www.sportsauthority.com/product/index.jsp?productId=3251162&cp=&sr=1&kw=hockey+pucks&origkw=hockey+pucks&parentPage=search) I now have hockey pucks!

http://lh4.ggpht.com/_b0ViaGso2Ko/TE7SQLiBbfI/AAAAAAAAAWo/eLXqGQJpEUA/s912/2010-07-26%2018.55.15.jpg

I purchased 12 hockey pucks from Sports Authority ONLINE for $25 shipped.

Reading the article on GOJEEP all I need to do is glue these hockey pucks in.
http://jeep-xj.info/Marks2003.jpg
:link: (http://jeep-xj.info/HowtoBumpstops.htm)

I noticed that Oreily's has spring compressors that you can borrow. So since I have a factory bump stop that has dropped into the coil, I already tried gluing it once, I'm going to remove the coil, fix that dropped bump stop. Paint the coils factory red and then install the hockey pucks. I'll have to look at it. I may have to reinstall the coil before I can install the pucks. I'd like to bolt that first puck to the base of the coil pad then glue the rest to it.

Keep watching this thread as I will post up things that I learned and pictures as this most recent Jeep project progresses.

[Mudderoy]

Doing a little more searching this morning I found this old thread on NAXJA.org. I had forgot about this. So apparently bolting the pucks down will work.

http://i141.photobucket.com/albums/r57/another_jeff/jeep/SANY0278.jpg
:link: (http://www.naxja.org/forum/showthread.php?t=954329&page=2)

[rugidone]

I definitely have to do this still, gotta to trim first to see how far I can stuff!

[Mudderoy]

I definitely have to do this still, gotta to trim first to see how far I can stuff!

Well I agree with GOJEEP assessment. It doesn't matter how much you lift, you need to bump stop. The tire is going to come into contact with the fender at some point. I guess you could trim so much fender that at full coil compression it wouldn't touch, but I've already trimmed a couple of inches off of mine.

[Mudderoy]

Doing a little more research. I see that the upper front bump stops are available for the Jeep XJ.

http://jeepinoutfitters.com/images/day-KJ09101.jpg

These are for my year XJ. $27 for a pair.

xjtalk vendor JeepinOutfitters.com = :link: (http://jeepinoutfitters.com/scripts/prodView.asp?idproduct=180)

I found they are also available through Payless4x4 (http://www.payless4wheeldrive.com/) Call the number on their ad (http://xjtalk.com/images/special/payless4wheeldrivelogo1-animated3.gif) (800-945-4294) and ask for Mark.

[rugidone]

Ya, I know I have to bump stop! Its just I gotta trim the fenders first, to figure out where lol. I have a bucket of 20-30 old Captain Morgan hockey pucks I will use :D

[4.3LXJ]

Well I agree with GOJEEP assessment. It doesn't matter how much you lift, you need to bump stop. The tire is going to come into contact with the fender at some point. I guess you could trim so much fender that at full coil compression it wouldn't touch, but I've already trimmed a couple of inches off of mine.

Also, your shocks will bottom out and damage them.

[Mudderoy]

Also, your shocks will bottom out and damage them.

You mean without bump stopping, right?

[4.3LXJ]

You mean without bump stopping, right?

Yes. One of the things to factor in when bump stopping is shock travel. We usually fit shocks based on the extended length of the lifted suspension. The increased length of the new shocks also means there is increased length of the collapsed shock. To protect that shock, the bump stops need to be increased to keep the shock from bottoming out.

[xj4life2]

To add to what Steve said the one thign to always remember : You can hang from a shock and it wont hurt it if you colapse it , just once , you have already done damage to it.

[default83]

also those oreilly spring compressors suck. just be careful when using it especially on aftermarket springs.

[W.O.R.P.Offroad]

i still have to figure somethin out on mine now that i swapped front axles and springs perches are moved and front is stretched.

[Mudderoy]

Well it makes sense, but I only recently became aware that they made replacement, and longer front upper bump stops!!!!

http://lh4.ggpht.com/_b0ViaGso2Ko/TFNyvVH7zGI/AAAAAAAAAW8/PqkKYG6l7vk/s640/2010-07-30%2019.39.35.jpg

http://lh4.ggpht.com/_b0ViaGso2Ko/TFOGc6jJkfI/AAAAAAAAAXI/zr0moIJnhoQ/s640/2010-07-30%2019.39.49.jpg

http://lh4.ggpht.com/_b0ViaGso2Ko/TFOGW9epP8I/AAAAAAAAAXE/BjKIHhYKz-g/s640/2010-07-30%2019.40.01.jpg

http://lh5.ggpht.com/_b0ViaGso2Ko/TFNyzlM_c5I/AAAAAAAAAXA/cLOIC4GEjng/s640/2010-07-30%2019.38.54.jpg

[4.3LXJ]

you will like those much better than hockey pucks

[Mudderoy]

you will like those much better than hockey pucks

Hmmm I was planing on both. :smiley-scared002:

I didn't want to stack up 3 or 4 hockey pucks. I was going to put these on and two hockey pucks. Bad idea? I'm planning on removing the coils so I can bolt the pucks down.

[4.3LXJ]

How come you are removing so much travel from your suspension?

[Mudderoy]

How come you are removing so much travel from your suspension?

Just trying to keep the tire out of the fender.

http://lh3.ggpht.com/_b0ViaGso2Ko/TC_gXIDnrKI/AAAAAAAAASQ/emRR68AfzzE/s720/2010-07-03%2012.58.48.jpg

The spring is almost fully compressed here and the tire is touching the top of the bushwacker. 33's will be a little worse.

http://lh3.ggpht.com/_b0ViaGso2Ko/TC_hB474O7I/AAAAAAAAASw/5-Po-HFmU8E/s800/2010-07-03%2012.56.45.jpg

[W.O.R.P.Offroad]

Well it makes sense, but I only recently became aware that they made replacement, and longer front upper bump stops!!!!


http://lh4.ggpht.com/_b0ViaGso2Ko/TFOGW9epP8I/AAAAAAAAAXE/BjKIHhYKz-g/s640/2010-07-30%2019.40.01.jpg


Man that thing looks like a huge black butt plug in your hands.

[Mudderoy]

http://lh3.ggpht.com/_b0ViaGso2Ko/TFTHMpT4IgI/AAAAAAAAAXQ/gpSkO4IFX90/s640/2010-07-31%2012.54.47.jpg

I need longer brake lines.

http://lh6.ggpht.com/_b0ViaGso2Ko/TFTsyx-C5VI/AAAAAAAAAXc/L7t5CFAVzl4/s640/2010-07-31%2022.15.58.jpg

Passenger's side complete, Driver's side complete.

It was a 12 hour day. About 2 hours of breaks and dinner.

Getting the coils off and on was easy. The time consuming stuff was using the dremel to take about 1/4 each all the way around the upper bump stop. Then cleaning the damn coil well enough to paint it.

I have about 4" of space between the upper bump stop and the top of the second hockey puck. I'll probably be removing some of the upper bump stop. I'll have to see how much the travel is limited.

[4.3LXJ]

That doesn't look like much upward travel. Are sure you didn't over do it?

[Mudderoy]

That doesn't look like much upward travel. Are sure you didn't over do it?

You're asking me? You act like I've done this before. :smiley-laughing021:

[alwaysxj]

looks really good, now you will never have to pay to have a lift installed just a little more and you would of done the whole lift. i have taken out and put back in coils like ten times and every time it still sucks, not hard to do but still sucks. nice work.

i need to bump stop as well to me it looks like just the longer isolator word work for me since i have alot of room in the wheel wells. let me know how it works out.

[4.3LXJ]

When you get those long arms on, taking coils in and out will be a snap. It will be like you have a zipper on it.

[default83]

dude i think you may have overkilled it on the stops.

you arent going to be able to get half the travel you used to.

[Mudderoy]

I dug around A LOT and found this rule of thumb...


For every 2 inches of increased tire diameter, you need 1 inch of bumpstop.

Which means I can probably safely remove the two hockey pucks. :o|

[Mudderoy]

Well today is the day to remove the hockey pucks (too much front bump stop now) and to build the rear bump stops.

http://xjtalk.com/images/special/rearbumpstop.jpg
drawing from GoJeep!

I went to Lowe's and picked up the bolts and a couple of cut off wheels.

http://lh3.ggpht.com/_b0ViaGso2Ko/TFxLQJdessI/AAAAAAAAAX4/T989mRFn6AA/s640/2010-08-06%2012.47.47.jpg

[xj4life2]

When you get those long arms on, taking coils in and out will be a snap. It will be like you have a zipper on it.

:smiley-laughing021::smiley-laughing021::thumbsup:

[cantab27]

thanks muddie , have to do the back ones on mine ... will copy what you do ..... no copy rights in this post ...lol

[4.3LXJ]

Just wanted to add, if the 2' is not enough you can get another 3" out of MJ rear bump stops. They look nice too.

[Mudderoy]

Not sure if I mentioned it in this thread or not, but the rear bump stops may be a little lower than stock. They may be 1" longer since my XJ came with the UpCountry package. At any rate I had a rear bump stop fail today. I thought the piece of square tubing was about 12 inches long, when I finally got to the point where I was going to work on the rear bump stops, first thing I did was measure it. 10.75" long. That was enough to make one rear bump stop.

So I'll be trying to locate some more square tubing. Rene was going to look for another piece, failing that I'll go back to plan "A" and see if I can find some at Tractor Supply, etc...

:thumbdown:

[Gabriel J]

You running sissy bars up front to? I mean sway bars? Just lean with it..

What about the rear? Nobody EVER think's about the rear bumpstops..

Travel is all about the down travel and limiting the up... Rear bumpstops are tricky if you have aftermarket Ubolts and havent cut the excess off... I have seen guys inboard them with 2x4 box steal.... would like to see some threads on that... (at the moment I have not done a search on here)... just throwing the Idea out there....

[Mudderoy]

You running sissy bars up front to? I mean sway bars? Just lean with it..

What about the rear? Nobody EVER think's about the rear bumpstops..

Travel is all about the down travel and limiting the up... Rear bumpstops are tricky if you have aftermarket Ubolts and havent cut the excess off... I have seen guys inboard them with 2x4 box steal.... would like to see some threads on that... (at the moment I have not done a search on here)... just throwing the Idea out there....

I have the front sway bar with disconnects. I haven't had a sissy bar since my spider bike when I was a kid.

The rear bump stop info (which I have not installed yet) is futher up in the thread.

[TeXJ]

im needing bumpstops for the front of mine. Those that went to Brazos with us noticed i broke my washer fluid resivour(sp) In the back i have 2x2 square tubing and a Rusty's extended bump stop.

In the front i kept putting hockey pucks and glueing them down, they kept popping off, so i would use different glue, i used what i thought was really good glue, i didnt skimp on that.

So now i am thinking about just getting the composite boltable(is that a word?) pucks that are 3 -4"s high.

[Mudderoy]

im needing bumpstops for the front of mine. Those that went to Brazos with us noticed i broke my washer fluid resivour(sp) In the back i have 2x2 square tubing and a Rusty's extended bump stop.

In the front i kept putting hockey pucks and glueing them down, they kept popping off, so i would use different glue, i used what i thought was really good glue, i didnt skimp on that.

So now i am thinking about just getting the composite boltable(is that a word?) pucks that are 3 -4"s high.

Popping off? The come off and go through the coil spring? You are gluing them to the pad at the bottom of the coil right?

[TeXJ]

Popping off? The come off and go through the coil spring? You are gluing them to the pad at the bottom of the coil right?

yeah i would clean the pad at the bottom then glue one on, then another then another, making sure they were nice and hard, when i would flex, the upper bump stop is not hitting it strait down, if you look they kind of point forward a tad. So that would hit the puck and i guess the force would move it, breaking the bond. Then i would loose the puck on the trail. :(

So i need to bolt them down. Or buy the plastic pucks with a bolt that is recessed.

[OrangeXJ]

Stick them together with silicone they will never come off

[Niac]

My tires didn't hit because I clearenced the fender wells.
Buuuttt the Diff did. It punched right through my oil pan.
I got a pan from a stock Cherokee and it was dented also.
So I bought the Daystar extended Bumpstops. They weren't enough so I added a hockypuck. I drilled a 1/4" hole through the puck. Then used a hole saw that I think was about 1" dia. and cut into the puck the depth of a 3/8" bolt head and flat washer. I dug the rubber out and drilled an tappped where it was going to go. I then bolted the puck and silicolned it in.

http://i291.photobucket.com/albums/ll283/cainc_bucket/Jeep%20Cherokee%202001/Cherokee%20Oil%20Pan/O_panhole.jpg

[TeXJ]

Stick them together with silicone they will never come off

I first tried 3M adhesive, then i had a friend that worked on cop cars to make crown vic's into well cop cars, and they would use a black silicone stuff on there lights to hold stuff down and i used that stuff and it still did not work.

Its always the driver side that spits them out, the passenger side i have no problem with.

[Mudderoy]

I first tried 3M adhesive, then i had a friend that worked on cop cars to make crown vic's into well cop cars, and they would use a black silicone stuff on there lights to hold stuff down and i used that stuff and it still did not work.

Its always the driver side that spits them out, the passenger side i have no problem with.

I went with stuff that bonds things to your house roof! I wanted it to handle heat and weather. Failing that some bad a$$ epoxy!

[TeXJ]

I went with stuff that bonds things to your house roof! I wanted it to handle heat and weather. Failing that some bad a$$ epoxy!

I'll look into that, is that the tar stuff? Link/pic?

[Mudderoy]

I'll look into that, is that the tar stuff? Link/pic?

The stuff I found was actually a light gray.

[Gabriel J]

My tires didn't hit because I clearenced the fender wells.
Buuuttt the Diff did. It punched right through my oil pan.
I got a pan from a stock Cherokee and it was dented also.
So I bought the Daystar extended Bumpstops. They weren't enough so I added a hockypuck. I drilled a 1/4" hole through the puck. Then used a hole saw that I think was about 1" dia. and cut into the puck the depth of a 3/8" bolt head and flat washer. I dug the rubber out and drilled an tappped where it was going to go. I then bolted the puck and silicolned it in.

http://i291.photobucket.com/albums/ll283/cainc_bucket/Jeep%20Cherokee%202001/Cherokee%20Oil%20Pan/O_panhole.jpg


I run factory Bumpstops and NEVER have had this problem... Looks more like a track-bar issue... Sucsk none the less.. I have taco'd my D.side lower control arm mount and pushed my front yolk into my exhaust down pipe once.. that was loud... But never had an issue with hitting my oil pan... Might wanna do some more investigation on that one.... Just a though..

[03ghosthemi]

I run 4 hockey pucks per side. I drilled 3/8 holes and used 3/8 bolts. On the top puck I also took a 1in drill bit and drilled down just enough so the bolt head would be counter sunk. Also drilled into the spring perch. Those things dont move at all.


Bill

[TeXJ]

i guess you can get a nut under the spring perch?

Havent looked at one in a long time, so rusty on the details

[03ghosthemi]

Yes the drivers side coil perch was easy, but the pass side took a little bit of work and swearing and droping/throwing things. But yes it can be done.

Bill

[Niac]

Nope. Pulled the springs and jacked the axle up until the jeep started raising. It's the pumpkin.

[Niac]

:sad0147:

[Niac]

I run factory Bumpstops and NEVER have had this problem... Looks more like a track-bar issue... Sucsk none the less.. I have taco'd my D.side lower control arm mount and pushed my front yolk into my exhaust down pipe once.. that was loud... But never had an issue with hitting my oil pan... Might wanna do some more investigation on that one.... Just a though..

I wasn't running any bumpstops. That's why. Not a good idea I know. But they weren't there when I bought the jeep.

[TeXJ]

muddy do the upper bump stops just pull out or do they screw out?

[bigjim350]

Some pull out and some unscrew. Think it depends on the year.

[Mudderoy]

muddy do the upper bump stops just pull out or do they screw out?

Mine were pull out, well one was fell out the other was pull.

[TeXJ]

Mine were pull out, well one was fell out the other was pull.

this is my next mod

[Mudderoy]

this is my next mod

I put some long narrow screws in mine. I didn't want them falling out.

[TeXJ]

I put some long narrow screws in mine. I didn't want them falling out.

good idea!

[TeXJ]

Old thread back to life, So I went looking and found two types, large diameter and the smaller one, which do I need, 97 xj?

Large ones (http://www.jeepinoutfitters.com/scripts/prodView.asp?idproduct=180)

Small ones (http://www.jeepinoutfitters.com/scripts/prodView.asp?idproduct=181)

The large ones say TJ the small ones say XJ.. However, tony's link took me to the large ones...im cunfusededed

[4.3LXJ]

Large ones

[TeXJ]

Large ones

aww thank you!

[Mikentucky72]

I bought my red sled well used and just noticed I am missing my right rear bump stop. Looked up o.e. replacement and was shocked that piece of rubber is over $50 each! To me, that is BS! It's like the price of tires, the larger the rim size the more money for less tire. It's a conspiracy I tell ya! Great thread, I learned a lot and will apply in future projects. GREAT INFO!

[bigjim350]

Well fenders work great as bumpstops....just sayin'

[TeXJ]

...untill they start cutting up your tires...

[bigjim350]

I have rubber trim on my fender lips. No cuts

Sent from my VM670

[denverd1]

I need to take the time to bumpstop mine. Front DS likes to chomp on my upper control arm and diff vent. Already had water in the diff. I can't figure out how their contacting but it sounds terrible when it does. stock upper arm is getting beat up pretty bad. Doesn't sound like a fun job.

[98FloridaXJ]

When I did my lift my front bump stops pretty much fell out from being deteriorated and rotten, I shortly replaced them with hockey pucks and I'm happy with them. My rear bump stops are still a problem though, I extended the rear stock bump stops with 1 1/2" square stock but I'm still having issues with having too much travel to the point that they hit the fenders. Other that building plates on top of the axle or spending $80 for extended stops that put me at the same length as I have now are there any other options?:banghead:

[4.3LXJ]

I used a bump stop off a Wrangler. It is a good 2" longer and fits the XJ. Another option is to use a 3/8" plate drilled to replace your spring top plate that is extended over enough to hit the bump stop.

[98FloridaXJ]

I'm going to have to look at the Wrangler ones, the local shop I prefer to use here could only find one style for me that were made directly for the XJ and like I said they would have been 80 bucks. For that price I can fab up something myself.

[4.3LXJ]

I got mine out of the pick and pull cheap

[98FloridaXJ]

I got mine out of the pick and pull cheap

What years wrangler will work?

[4.3LXJ]

Not really sure. I got mine off another XJ. But you will recognize them when you see them. They look just about like the Daystar extended rear bumpstop

[RVXJ]

Old thread back to life, So I went looking and found two types, large diameter and the smaller one, which do I need, 97 xj?

Large ones (http://www.jeepinoutfitters.com/scripts/prodView.asp?idproduct=180)

Small ones (http://www.jeepinoutfitters.com/scripts/prodView.asp?idproduct=181)

The large ones say TJ the small ones say XJ.. However, tony's link took me to the large ones...im cunfusededed

I need to do this to my 97. I have some extended Daystars on order. I too was confused about this as no one states the diameter. I measured my one existing stop after I pulled it out and it measures 1 9/16" on the O. D. I have seen some that say they are 2",So I ordered the small ones. I hope they fit!

[TeXJ]

What I did for my rear bumpstops is this:
2" tube cut
2" longer bumpstop from Rusty's

This is on a sagging 3 1/2" lift(s-10 springs in the rear) and 33" tires.

[denverd1]

98 w/ 4.5" lift.

dropped a stop on last trip out. found it inside the coil when we got home. thought about hydraulic shocks .5 seconds. then I saw the price :sad0147: :mad:

so ordering some daystar extended stops.

also saw these by omix on amazon: Amazon.com: Omix-Ada 18280.09 Axle Bumper: Automotive@@AMEPARAM@@http://ecx.images-amazon.com/images/I/41z1PG8s3qL.@@AMEPARAM@@41z1PG8s3qL
$3 for the rear stop

[TeXJ]

I have those^ mine are rusty's plus 2" squared tube for the rear.

[tonybeirut]

Something I've been needing to do for some time was to bump stop my rig.

After poking around on the Internet I found the best solution at GOJEEP!

Hockey pucks and metal tubing. Thanks to rguignard I have the square metal tubing and thanks to Sports Authority (http://www.sportsauthority.com/product/index.jsp?productId=3251162&cp=&sr=1&kw=hockey+pucks&origkw=hockey+pucks&parentPage=search) I now have hockey pucks!

http://lh4.ggpht.com/_b0ViaGso2Ko/TE7SQLiBbfI/AAAAAAAAAWo/eLXqGQJpEUA/s912/2010-07-26%2018.55.15.jpg

I purchased 12 hockey pucks from Sports Authority ONLINE for $25 shipped.

Reading the article on GOJEEP all I need to do is glue these hockey pucks in.
http://jeep-xj.info/Marks2003.jpg
:link: (http://jeep-xj.info/HowtoBumpstops.htm)

I noticed that Oreily's has spring compressors that you can borrow. So since I have a factory bump stop that has dropped into the coil, I already tried gluing it once, I'm going to remove the coil, fix that dropped bump stop. Paint the coils factory red and then install the hockey pucks. I'll have to look at it. I may have to reinstall the coil before I can install the pucks. I'd like to bolt that first puck to the base of the coil pad then glue the rest to it.

Keep watching this thread as I will post up things that I learned and pictures as this most recent Jeep project progresses.

Hello Mudderoy, im about to do that mod coz both my front and rear BS are gone , and im shipping parts from the US to Beirut/lebanon from Amazon,

Placed A&R Sports puck and the Omix-Ada 18280.09 Axle Bumper in my cart but I'm confused about the Daystar BS which ones to buy KJ09101BK or KJ09114BK .

Mine is a 1994 XJ country edition. your help is appreciated.

[jonb8]

I'm horrible on bumpstops, I've never built any and just let the tires eat what gets in the way.. After awhile the problem fixes itself...LOL