Do I need to install the rear bump stop extenders with OME 2" lift?

Creakydoor

Creakydoor

TJ Enthusiast
Original poster
Supporting Member
Joined
Jul 17, 2018
Messages
303
Location
Arvada, Colorado
I’ve been preparing to start installing my OME 2” lift kit (OMETJHKS) and was reading through the installation instructions and it talked about installing rear bump stop extenders (which are included in the kit. However, I am also installing a Savvy 1.25” body lift.

I thought I remember reading that body lifts reduce the amount of bump stop you need to have. Is my case an example of this?

In other words, do I need to install the rear bump stop extenders? My current guess is no. But I know some of you know more definitively than just guessing. :)
 
The rear will require bump stop extension in order to keep the new shocks from over-compressing. A body lift won't change that. It is the front that might be able to have less bump stop because the tires will have more room before reaching the steel fenders at full flex.

Before you install the lift, research how to correctly extend the bumps.

The body lift can and should go in anytime before the lift does.
 
Last edited:
  • Like
Reactions: Creakydoor, JMT and fuse
Ok, thanks for that information.

The OME kit came with rear bump stop extenders already so I will just use those as they recommend.

Will do a little reading about options for the front.
 
Creakydoor said:
Ok, thanks for that information.

The OME kit came with rear bump stop extenders already so I will just use those as they recommend.

Will do a little reading about options for the front.
Click to expand...
My memory is a little foggy, but I don't recall the bump stop extension that OME supplied being enough for their own kit, believe it or not. When I made my own, I had an inch in the rear for the shocks and 1.5" up front for the 33" tires with a body lift.
 
jjvw said:
My memory is a little foggy, but I don't recall the bump stop extension that OME supplied being enough for their own kit, believe it or not. When I made my own, I had an inch in the rear for the shocks and 1.5" up front for the 33" tires with a body lift.
Click to expand...

The rear bump stop extenders that came with the kit are made of aluminum (I believe) and are 13/16" thick.
 
jjvw said:
The rear will require bump stop extension in order to keep the new shocks from over-compressing. A body lift won't change that. It is the front that might be able to have less bump stop because the tires will have more room before reaching the steel fenders at full flex.

Before you install the lift, research how to correctly extend the bumps.

The body lift can and should go in anytime before the lift does.
Click to expand...
@jjvw
Is the reason the body lift should be installed first so that the bump stops can be properly set to full bump during the lift install ? I hope that made sense..
 
KCsTJ said:
@jjvw
Is the reason the body lift should be installed first so that the bump stops can be properly set to full bump during the lift install ? I hope that made sense..
Click to expand...
A body lift can affect how much front bump extension stop is required. More often than not, the front is extended in order to keep the tires out of the fenders at full flex. Adding a body lift will reduce that amount.

Installing the body lift early on just allows you to consider all the variables when selecting shocks and setting the final bump stop extension.
 
  • Like
Reactions: KCsTJ
I just recently installed front sway bar quick disconnects, and tried a flex test. Much more than before, which was great. However, now with that extra flex, it looks like I need longer bump stops. (Yes, I never did a full suspension cycle when I installed the lift--my bad, @jjvw, I know I should have. :) ) With less articulation, I was fine. Now it seems less fine.

When I was flexing, the bump stop was just barely touching, and the tire was just touching the fender. If I pushed it more, the bump stop would not have stopped the tire from going deeper into the fender--not good.

So the question I have is how much space people generally leave to be safe? Keep it 1" away from the fender? Or try to get it as close as possible? I also wonder if there is a risk of over compressing the springs on the front as well.

I was thinking of getting 1.5" longer bump stops. That way, I would have some space for it to touch completely, compress a little, and still leave .5" to 1" between the tire and fender. Good plan? Or should I be thinking about this differently?

IMG_4632.jpg


IMG_4636.jpg


IMG_4637.jpg
 
The bumps need to be as long as necessary to prevent damage. A little tire rub at full flex is fine. Using the shock as the bump stop at full flex can be fine. Both of these are slow speed crawling events.
 
  • Like
Reactions: Creakydoor
jjvw said:
The bumps need to be as long as necessary to prevent damage. A little tire rub at full flex is fine. Using the shock as the bump stop at full flex can be fine. Both of these are slow speed crawling events.
Click to expand...
Thanks for the info.

The worry I had was that the bump stop wasn't quite fully engaged, so my guess the bump stop would go down a bit more, so the tire and fender might be more than a little rub.

Also, any concerns on over compressing the front springs? Or am I overthinking it?
 
Top Bottom