A couple thoughts about the Eibachs [Archive] - Cherokee SRT8 Forum

: A couple thoughts about the Eibachs


HoustonSRT-8
07-04-2008, 10:23 PM
I know a few of us are experiencing problems with bottoming out, so I started thinking since I hit bottom 4 times (1 in front, 3 in rear) today on a 3hr road trip. I had the full family and roughly 6 bags in the back, but still....

In the rear, is the lower spring perch contacing the upper spring perch? If so, would it be possible to cut some off the housing where the bumpstop sits to give more compression room?

If the shock were to regain it's full motion of travel, would that help prevent bottoming out? If so, what about shock extenders like this (http://www.nhtoc.com/vbforum/how-articles/40696-how-rear-shock-extenders-install.html). It was a fairly popular mod with the Harley F150 crowd after lowering with drop shackles to help regain the shock travel.

silverbullet
07-04-2008, 11:15 PM
Yeah, what you have experienced on your family trip is exactly what I am avoiding and thus my reluctance to get the Eibachs at this time. On my previous ride, I had bottoming out issues when hitting bumps at speed. Even some railway tracks. It really sounds like @ss when you hit.

I am hoping and waiting for someone to figure this out prior to me buying a set

aplatero1984
07-05-2008, 03:02 AM
Houston, I've bottomed out quite a few times myself. What you just mentioned might work. I'm still thinking if we can get some stiffer shocks for it then that might help out a bit also.

HoustonSRT-8
07-05-2008, 08:13 AM
Yeah, but it might take as long to get shocks to market as it took the springs to get to market.

These ideas could possibly happen immediately, if we can find a set of extenders that fit our perches.

SRTFreak
07-05-2008, 09:02 AM
Yeah, but it might take as long to get shocks to market as it took the springs to get to market.

These ideas could possibly happen immediately, if we can find a set of extenders that fit our perches.


I am thinking about taking the stock bumpstop out and rplacing with an aftermarket one. I do not feel that the shocks are handicapped in any form at this point of only being 1" lower in travel. and I think that coil bind may be an issue as well.

HoustonSRT-8
07-05-2008, 09:10 AM
The Eibach's came with shorter bump stops, Blaine?

Jeep Trick
07-05-2008, 09:22 AM
Yes they did, I made a video of mine installed (didn't have a camera :( )

I cut the base of my Eibach ones by about 1/4"-3/8" and my jeep is still contacting the bumpstops without anybody in it!

SilveRT8
07-05-2008, 10:13 AM
Yes they did, I made a video of mine installed (didn't have a camera :( )

I cut the base of my Eibach ones by about 1/4"-3/8" and my jeep is still contacting the bumpstops without anybody in it!

I cut mine about 5/8" up to the wider ridge and it still hits the bumpstops.
I think I will cut it some more when I find the time.
I measured the shock height with Eibachs on and got 18 1/4" from center of top bolt to center of bottom one, than removed the shock, fully compressed it and measured 15 1/2". So the shock still has 2 3/4" of travel left in it, while the bumpstop will bottom out after about 3/4" of spring compression. I'm no expert on this but would think it still safe to cut the bumpstop some more
Claude

Jeep Trick
07-05-2008, 10:25 AM
I cut mine about 5/8" up to the wider ridge and it still hits the bumpstops.
I think I will cut it some more when I find the time.
I measured the shock height with Eibachs on and got 18 1/4" from center of top bolt to center of bottom one, than removed the shock, fully compressed it and measured 15 1/2". So the shock still has 2 3/4" of travel left in it, while the bumpstop will bottom out after about 3/4" of spring compression. I'm no expert on this but would think it still safe to cut the bumpstop some more
Claude

I cut only from the top part of the bumpstop where it installs in the cup.

And we are talking only rears, What I see on mine is that the bumpstop cup and the rebound plate only have about 1 1/2" between them so hard contact would be feasible.

Jeep Trick
07-05-2008, 10:29 AM
http://i218.photobucket.com/albums/cc154/Jeep_Trick/Eibach/th_VID00002.jpg (http://s218.photobucket.com/albums/cc154/Jeep_Trick/Eibach/?action=view&current=VID00002.flv)

SilveRT8
07-05-2008, 11:13 AM
http://i218.photobucket.com/albums/cc154/Jeep_Trick/Eibach/th_VID00002.jpg (http://s218.photobucket.com/albums/cc154/Jeep_Trick/Eibach/?action=view&current=VID00002.flv)

Good Vid, exactly as mine except I cut from the bottom part of the bumpstop
Claude

Muellge
07-05-2008, 11:17 AM
http://i218.photobucket.com/albums/cc154/Jeep_Trick/Eibach/th_VID00002.jpg (http://s218.photobucket.com/albums/cc154/Jeep_Trick/Eibach/?action=view&current=VID00002.flv)

No jack stands on that work? :eek:

HoustonSRT-8
07-05-2008, 11:54 AM
Guys, I'm not talking about cutting the bumpstop itself. I'm talking about cutting the bumpstop cup. I believe that is what we are feeling hit and if we increase the distance between that and the rebound plate, I believe it will be better.

Jeep Trick
07-05-2008, 02:06 PM
No jack stands on that work? :eek:

I had just pulled them out before putting the tires back on, wanted to show that the Jeep had all its weight on the rear end

Guys, I'm not talking about cutting the bumpstop itself. I'm talking about cutting the bumpstop cup. I believe that is what we are feeling hit and if we increase the distance between that and the rebound plate, I believe it will be better.

Yes I understand that, its circular so just cut xx" out and weld it back together

Maybe cut it and re-use the stock bumpstop

I wonder how available that cup is & the part ### just in case it doesn't go as planed, also you can retain the stock set-up as a standby

Derwood98
07-05-2008, 02:33 PM
Are those progressive rate springs? Looks like it with the coils mashed together at the top while the bottom is still open.

HoustonSRT-8
07-05-2008, 06:32 PM
Are those progressive rate springs? Looks like it with the coils mashed together at the top while the bottom is still open.
yes, these are progressive

SilveRT8
07-06-2008, 12:17 PM
yes, these are progressive

Can we still call this progressive when the top 5 coils are already mashed up from the weight of the Jeep alone?
Claude