The YJ is set up with a set of SOA Alcans. Boomerang shackles at the stock eye to eye length. 1 inch BL and Bilsteins but no stab. bar.

Found out last weekend while doing a short road run between trails. That running 15 psi in a set of 37 x 15 MT/R`s is not a good idea. Several times we got into a side to side body roll/pitch that scared the crap outta me. Only way to save it was to brake hard and hold the wheel straight. The pitch kept feeding on itself and may have even caused a roll if I had not slowed down.

So

What are some ideas for a stab/sway bar in front ? With the SOA the distance from the frame to the spring plates looks to be way short for a stock bar/links. Perhaps mounting the bar above the frame rail in front of the winch is a thought. Not a lot of room between the winch and the grill though. Then the bar would be pulling on the saddles rather then pushing up on the frame like a stock one. Perhaps pulling the mounts off the frame,

The Currie Anti Rock shows only a bar for a TJ.

Anybody have some thoughts or could share what they did ?

Thanks

I run 37" MTRs @ 8 PSI on SOA w/no sway bars with no problems at all. My guess is the boomerangs are your problem. I have never seen those POS shackles do a damn bit of good - ever.

I run 37" MTRs @ 8 PSI on SOA w/no sway bars with no problems at all. My guess is the boomerangs are your problem. I have never seen those POS shackles do a damn bit of good - ever.

Thanks for the input. Boomerangs are on the rear only. Rounding a curve was a scary maneuver. Felt like it was a big marshmallow. The side to side would be set off by pitches (side to side) in the roadway.

When I run the Creepy Crawlers (my normal off road tire) at 10 pounds or less. The Jeep handles MUCH better then the MT/R`s. But The CC`s wear fast on the street. Thus the MT/R`s are my normal DD tire. Pump the MT/R`s up to 25 lbs. and the Jeep handles much better. Still a bit of pitch but controllable.

In any case I`d still like to add the stab bar to help with body lean. Then a set of disco`s for the trails.

Have a set of straights I could try.

I found the same to be true while trailering my vehicle. 35" Claws with 5 psi will cause the same undesired body roll that feeds on itself.

For on road, even at 5 psi and no sway bar at 40 mph I get no roll and those are squichy tires at that psi.

Maybe try the teraflex setup.
Even if you threw a stock sway bar under there and had disco link would be better if you are getting that much body roll.
I also understand that most people want to do this "inexpensively as possible", but I think in terms of the long term expense and use. If you were to spend $500 (or whatever) on a quality roll control system that saved you time and time again from death rolls, it would be far better than a "cheap" setup that had to be changed and recalibrated all the time.

Just my two cents.

I run 37" MTRs @ 8 PSI on SOA w/no sway bars with no problems at all. My guess is the boomerangs are your problem. I have never seen those POS shackles do a damn bit of good - ever.


How in the world could a boomerang shackle cause bad handling, it doesn't react any differently than a straight shackle. As you sure you are not thinking of revolvers?

I found the same to be true while trailering my vehicle. 35" Claws with 5 psi will cause the same undesired body roll that feeds on itself.

For on road, even at 5 psi and no sway bar at 40 mph I get no roll and those are squishy tires at that psi.

Maybe try the teraflex setup.
Even if you threw a stock sway bar under there and had disco link would be better if you are getting that much body roll.
I also understand that most people want to do this "inexpensively as possible", but I think in terms of the long term expense and use. If you were to spend $500 (or whatever) on a quality roll control system that saved you time and time again from death rolls, it would be far better than a "cheap" setup that had to be changed and recalibrated all the time.

Just my two cents.

It definitely feeds on itself. No doubt there.

The roll issue has to be addressed. Think of what would happen if we tipped with the kids riding along. Not a pretty thought. An accident just waiting to happen.

Honestly I am thinking the Alcans and the MT/R sidewalls are the issue.

Alcans are pretty flexy once broken in and the MT/R`s sidewall is apparently not as still as the CC. Not top mention the CC`s are on 10 inch beadlocks and the MT/R`s on 8 non-BL.

Will checkout Terraflex and see what they have.

This might be one of those deals where it is cheaper to buy a proven set up then experiment with trying to do it yourself.

How in the world could a boomerang shackle cause bad handling, it doesn't react any differently than a straight shackle. As you sure you are not thinking of revolvers?

Was wondering the same thing. Pretty sure he was thinking of the POS revolvers.

I put the JKS telescoping trackbar on my SUA YJ and I like it for the most part. Now they are only designed for up to 6" of lift but a little imagination and it could work.

I agree, how could the shackles effect the body roll any different than the straight ones. Just wondering. I would like to know because I am thinking about putting XJ springs on the back of my CJ and using boomerang to help with the added length.

I agree, how could the shackles effect the body roll any different than the straight ones. Just wondering. I would like to know because I am thinking about putting XJ springs on the back of my CJ and using boomerang to help with the added length.

I wouldn't worry about it. I've got boomerangs on all 4 corners and it's working fine all the way up to 70mph (although I certainly don't corner at that speed) ;)

I put the JKS telescoping trackbar on my SUA YJ and I like it for the most part. Now they are only designed for up to 6" of lift but a little imagination and it could work.

Not running any track bars. HP44 with Hi Steer/Ram Assit up front and what started out :Das an 8.8 in the rear.

Not a steerring issue at all. Just a body roll.

Thanks for the thought though.:smokin:

Tera makes discos for the YJ and sway bar kits for the TJ only.

I wouldn't worry about it. I've got boomerangs on all 4 corners and it's working fine all the way up to 70mph (although I certainly don't corner at that speed) ;)

On a flat road with no side wind. Running 25 psi I can cruise at 70 and above no problem. NV4500 with OD :smokin: Add some side wind and she is down to 60 and below.

I'll get killed for linking to a JU thread ;) But there's a couple un-detailed pics of an antirock on a yj

http://www.jeepsunlimited.com/forums/showthread.php?t=890035

I'll get killed for linking to a JU thread ;) But there's a couple un-detailed pics of an antirock on a yj

http://www.jeepsunlimited.com/forums/showthread.php?t=890035

Thanks for the link. Will give Chris a call and Currie.

How in the world could a boomerang shackle cause bad handling, it doesn't react any differently than a straight shackle. As you sure you are not thinking of revolvers?
:emb4::emb4: You're right - I was thinking revolver - my bad

I'm running SOA w/ stock CJ rears all the way around on my CJ7. I'm just using the stock CJ sway bar and some stock length disconnects. Only thing I changed was welding some shock studs to the front of my axle. So far so good and I have beat on it pretty good. I can cruise down the highway at 70 mph w/ it hooked up no problem.

You can kinda see it in this picture, and I can take a better picture if you want to see more. Drove up a concrete wall w/ my sway bar connected and my tie rod failed instead of my sway bar mounts.
http://i87.photobucket.com/albums/k124/glp86/P4141006.jpg

You're on the right track for sure. I did a SOA with stock springs/axles and 35s on my 95 YJ and ran most of the time without the sway bar connected. At that time I had a set of stock-height JKS swaybar disconnects and simply mounted them to the stock pin on the flipped spring plate. Jeep always tracked and handled well. A little soft with the sway bar disconnected but not squirrely at all.

Then I switched to BBCS shocks, installed a D60 1 inch forward from stock and went with 37" Krawlers on H2 wheels. I tried to run without a swaybar and I got EXACTLY the same reaction you are talking about. Violent and nearly uncontrollable body sway when hitting bumps at the side of the road. More than once I thought I was going to lose it.

I welded mounts to the front of the axle for the lower sway bar mount and reused the stock swaybar with the stock JKS disconnects. Problem solved. As stable as ever.

You're on the right track for sure. I did a SOA with stock springs/axles and 35s on my 95 YJ and ran most of the time without the sway bar connected. At that time I had a set of stock-height JKS swaybar disconnects and simply mounted them to the stock pin on the flipped spring plate. Jeep always tracked and handled well. A little soft with the sway bar disconnected but not squirrely at all.

Then I switched to BBCS shocks, installed a D60 1 inch forward from stock and went with 37" Krawlers on H2 wheels. I tried to run without a swaybar and I got EXACTLY the same reaction you are talking about. Violent and nearly uncontrollable body sway when hitting bumps at the side of the road. More than once I thought I was going to lose it.

I welded mounts to the front of the axle for the lower sway bar mount and reused the stock swaybar with the stock JKS disconnects. Problem solved. As stable as ever.


Thanks Jerry for the insight. Scary isn`t it ?:eek::eek:

Did some checking, called a few folks and ended up ordering a Currie AntiRock for the TJ. The bushings that go in the front frame tube will need to have the OD turned down a touch and tabs welded to the front axle. Have to notch the ends of the front bumper a bit also. Beyond that it should be a pretty simple install.

Decided to go this way because like you, my axle is also pushed forward. Couple inches here. Was not sure how the stock bar would fit up with the axle.

Then have no stock bar or mounts to work with. Add the cost of the disco`s. Hell by then we are knocking on the door of an AntiRock. (kinda :flipoff2:)

Supposed to be here on Tuesday and hope to get it in on Weds. Will report back.

Thanks again !!

Thanks Jerry for the insight. Scary isn`t it ?:eek::eek:

LOL! YES IT WAS!

The scariest part was that it was so unexpected. I had put over 60,000 miles on the SOA conversion with 35s/36s, stock D30 front and a D35/8.8. I had made other changes in the past and it totally caught me off guard to have such a violent reaction.

Good luck. I'm looking forward to seeing how the Currie works out for you.