Pressurized
TJ Enthusiast
I get it... In fact, possibly looking to buy the Savvy front set up just to be sure.
Dave Kishpaugh's (Jeep West) geometry correction brackets are now available
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All I know is that if you ain't ridin' on tuned, outboarded 12" Fox shocks, you just ain't ridin'...
There is a lot of bang for the buck in there.
100% agree, I am just trying to understand it all and when/where it applies to me in an LJ. Sorry if anything above is considered talking trash - that's not my intent at all.
To be clear, I am not sold on a midarm (at least in the rear) - which is why I am curious about this as another option. It's definitely tempting for $160 and then to midarm the front.
Tell us how rear steer was holding you back? How did you recognize it?
What was it about the factory lifted short arms that won't allow the tires to be tucked in the wheel well?
What track bar issues are there that aren't fixed with Currie?
The supposed bind issue has already been beatened to death.
The problem is that I have done enough to know a few things. And before you call me a Savvy mid arm fan boy, remind the crowd how often I tell people they don't need it.
The rear steer, or the twisting of the axle under articulation, is what would push the tire into the back wall of the wheel well. I suspect due to the steep downward angle of the arms on the droop side. I had to trim roughly 1.5” out of the rear wall before I had the corners. I put the corners on with the geo correction and cycled and the tire now goes straight up instead of back into the rear wall. No trimming needed on the new corners. That’s a nice plus. I had tried shortening my arms before and that still wasn’t enough.
The rear steer was also recognizable around corners. It would push the inside front tire up when throttling around corners. It doesn’t do that anymore.
I still had to trim my rear crossmember and even savvy gas tank flange to fit my Currie trackbar. Again not the end of the world like the wheel opening trimming but it’s certainly a plus. I also believe some of the stability gain is due to raising the axle side TB mount but I don’t know for certain.
Really I was just calling you guys out a little bit because I was sensing a good bit of condescending tone towards something you haven’t driven and is different than the status quo on the forum. I just want to encourage a little more open mindedness is all. I’ve learned a lot from your build about cycling and suspension and I appreciate that a lot.
For sure, I know you weren’t. Wasn’t trying to call you out at all just thought it was worth bringing up the difference between the two. Had a great time wheeling with you and hope to again some day!
Sounds like the rear axle was pushed too far back like mine is on purpose. Q
Do the JW Geo Correction kits allow use of the OEM track bar??
That’s what Dave says but I haven’t tried it first hand
I've been waiting for an opportunity to show some ignorance, so here we go...
On my LJ I can notice rear steer when driving down the highway. Especially if its windy. Granted its really hard to tell the exact cause. It could be just the side wind. Being disconnected or having worn anti-sway bar bushings will also contribute to a loose feeling Jeep. But I think that rear steer is definetly a factor in that unsettled feeling you can get when lifted. I don't know that it would be a problem on a trail. I think its more a high speed stabilty issue.
Track bar issues that Currie doesn't fix is just having a solid bracket to raise the track bar sufficiently. You really need to raise that axle end of the trackbar to lower the roll center. Currie does offer a bracket but it should have better support so the axle mount is not torn off. Synergy used to make a fantastic bracket. I have one, but mine has the angled top like in the picture below for an axle that is tipped up with CV shaft, so I can't use it. I wish someone made one like this for stock driveshafts. Notice it has an extension on the bracket to secure it to the axle to account for the extra leverage. Nobody else has ever made such a nice bracket. Its a shame Synergy quit making them.
I'll go out of a limb and say, short of a deadly crash on the highway, that isn't the rear steer most are referring to that occurs during high articulation events.
Pressurized
TJ Enthusiast
So, I have a PM convo going with another member where I shared some of my experience on this exact topic. Over the last couple of days, my wife has driven the LJ to work, due to me doing some work on her JKU. She came back and said she immediately noticed how much more stable it felt on the road after the geo correction. Not an enthusiast or experienced offroad driver, and not prompted with any information, just someone that drove it plenty before and now after. Can't see how it could be a placebo effect on her, she had no expectations. It simply feels like it's working better...
Also to be clear I am 100% a savvy fan boy as well. They make good shit!
Pressurized
TJ Enthusiast
You said you felt huge differences after the geo correction... I think mine was less dramatic, and I suspect that's due to wheelbase. My most notable changes were in compliance and stability. For instance going over a speed bump, I am using more shock travel, I'm confident of it. I suspect thats due to the flatter overall control arm angles. You felt it in handling... I suspect that was exaggerated over mine due to the Anti Rock, I'm still on the stock front bar which is quite stiff as we all know.
In closing for me, I'll say that I'm certainly glad I found these here as I wouldn't have known about them otherwise.
There has to be a "reason" to skin cats?
Asking for a friend
Brianj5600
TJ Expert
I built my own based off the Nth brackets. I used the stock TB to determine where to the axle side bracket should be. I ran a stock trackbar for over a year with out issue.
Rear steer is an uncontrollable variable. It is hard to know how much the rear is influencing tracking from the drivers seat. More predictable, more better to me.
As far as wheel placement I built 2 non-adjustable LCAs to stock length and adjustable uppers very close to stock length. Since Nth designed the kit with stock length arms it was practically bolt in and go. The only adjustment was pinion angle. The tire tucks nicely with no adjustments.
Another plus already mentioned is the axle is in a different part of the arc that the axle moves in. Before correction the tire was noticeably forward of center of the wheelhouse at ride height. It looked awkward and bugged me. With correction the tire looks more centered. You also regain a bit of wheelbase.
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