Thanks audiboy and tom! Exactly the info I was looking for.
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| Quick question about bump stops http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=74518 |
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| Author: | lfhoward [ Fri Mar 15, 2013 1:45 pm ] |
| Post subject: | Quick question about bump stops |
Is this principle correct (I think I remember reading this but couldn't find the post): For every inch of lift you should have about an inch of extra bumpstop to protect the springs from stacking and the shocks from bottoming out? For example, a JBA rear coil spring that gives you 4 inches of lift should be paired with about 3-4 inches of additional bumpstop (or 2 hockey pucks)? The reason I ask is when my lift was installed earlier this week, they didn't install the rear 3" bump stop extensions that came with the kit (which go inside the rear springs like hockey pucks). I'm wondering if I need to go back and have that fixed. What does your experience tell you? |
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| Author: | tommudd [ Fri Mar 15, 2013 3:52 pm ] |
| Post subject: | Re: Quick question about bump stops |
2 inches should be enough "extra" bumpstops for yours. Unless you are running much larger tires or wider than normal wheels that would hit the flares when off road |
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| Author: | lfhoward [ Fri Mar 15, 2013 5:24 pm ] |
| Post subject: | Re: Quick question about bump stops |
Thanks. So, I do need something more than the stock bumpstops back there... |
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| Author: | audiboy86 [ Fri Mar 15, 2013 10:11 pm ] |
| Post subject: | Re: Quick question about bump stops |
If you plan on wheeling it and like your body work the way it is yes. |
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| Author: | woodtick [ Sat Mar 16, 2013 9:20 am ] |
| Post subject: | Re: Quick question about bump stops |
would I need to add bumpstops for OME 1 1/2" lift on CRD? |
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| Author: | audiboy86 [ Sat Mar 16, 2013 9:36 am ] |
| Post subject: | Re: Quick question about bump stops |
Oh yeah Woodtick again with a OME lift as with most suspension lifts you gained more down travel and height but you also gained more up travel. |
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| Author: | lfhoward [ Wed Mar 20, 2013 1:27 pm ] |
| Post subject: | Re: Quick question about bump stops |
tommudd wrote: 2 inches should be enough "extra" bumpstops for yours. Unless you are running much larger tires or wider than normal wheels that would hit the flares when off road Thanks for the feedback. One more question: Would hockey pucks fit inside JBA 4 inch springs on a KK? I'm thinking of using one puck per side-- but correct me if you think I would need two stacked on top of each other to get enough height. |
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| Author: | audiboy86 [ Thu Mar 21, 2013 7:46 am ] |
| Post subject: | Re: Quick question about bump stops |
The pucks should fit through the springs just fine with all the wieght off the rear axle. So just jack the jeep up and and press on the axle on one side slide the pucks through and repeat. You may even get lucky and just need to jack it up. And you will need 2 per side to get enough hieght and may sure to get either a flat bolt head or recess it into the puck some unless your going the glued route. |
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| Author: | tommudd [ Thu Mar 21, 2013 8:18 am ] |
| Post subject: | Re: Quick question about bump stops |
lfhoward wrote: tommudd wrote: 2 inches should be enough "extra" bumpstops for yours. Unless you are running much larger tires or wider than normal wheels that would hit the flares when off road Thanks for the feedback. One more question: Would hockey pucks fit inside JBA 4 inch springs on a KK? I'm thinking of using one puck per side-- but correct me if you think I would need two stacked on top of each other to get enough height. Need two per side |
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| Author: | lfhoward [ Thu Mar 21, 2013 8:19 am ] |
| Post subject: | Re: Quick question about bump stops |
Thanks audiboy and tom! Exactly the info I was looking for.
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| Author: | tommudd [ Thu Mar 21, 2013 8:19 am ] |
| Post subject: | Re: Quick question about bump stops |
audiboy86 wrote: The pucks should fit through the springs just fine with all the wieght off the rear axle. So just jack the jeep up and and press on the axle on one side slide the pucks through and repeat. You may even get lucky and just need to jack it up. And you will need 2 per side to get enough hieght and may sure to get either a flat bolt head or recess it into the puck some unless your going the glued route. Regular bolt works good, that way if you ever need to remove it will not be a huge PITA. A few have tried to glue them but most all have fell out |
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| Author: | lfhoward [ Thu Mar 21, 2013 8:50 am ] |
| Post subject: | Re: Quick question about bump stops |
I'm thinking a grade 8 bolt for strength, with a washer at the top. Do you usually drill out the top puck to recess the bolt and washer, or is it ok not to? How far should the threaded end of the bolt extend out from the bottom puck (into the spring platform, for lack of the correct term)?  Funny how one question can turn into several once you know too much. 
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| Author: | lfhoward [ Thu Mar 21, 2013 9:47 am ] |
| Post subject: | Re: Quick question about bump stops |
I found Budke's hockey puck how-to writeup on JeepKJ, and it answers my questions. Here is the link in case anybody else has similar questions later: http://www.jeepkj.com/forum/f202/how-install-rear-bumpstops-hockey-puck-version-43989/ |
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| Author: | tommudd [ Thu Mar 21, 2013 11:06 am ] |
| Post subject: | Re: Quick question about bump stops |
lfhoward wrote: I'm thinking a grade 8 bolt for strength, with a washer at the top. Do you usually drill out the top puck to recess the bolt and washer, or is it ok not to? How far should the threaded end of the bolt extend out from the bottom puck (into the spring platform, for lack of the correct term)? Funny how one question can turn into several once you know too much. Don't need Grade 8 bolts to hold them in, way overkill Never recessed the bolts either, why? Bolt head is not going to hurt anything want them long enough to get a nut on the bottom. On 2 of them I use a 2.25 inch long bolt, 3 use 3.25 inch long etc |
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| Author: | tommudd [ Thu Mar 21, 2013 11:08 am ] |
| Post subject: | Re: Quick question about bump stops |
lfhoward wrote: I found Budke's hockey puck how-to writeup on JeepKJ, and it answers my questions. Here is the link in case anybody else has similar questions later: http://www.jeepkj.com/forum/f202/how-install-rear-bumpstops-hockey-puck-version-43989/ I think thats the one write up that he did that made sense   
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