Put on another Inch, steering slop?

Sep 11, 2005 10 Replies

Since when does 1 more inch cause steering problems?



Pulled my stock packs out of my 89 YJ SOA today. Had 8 more good stock packs. I pulled the 4 not as good mains out and stuck them in good stock packs after cutting the spring eyes off. I also added a short leaf to both. This gives me 7 leaf rears, and 6 leaf fronts.



We didn't measure, but it looks like it added about an inch to an inch and a half. I wasn't going for height, but cool! What I was going for was spring longevity with the addedd mains, and to clear my drag link better with the short leaves up front. The rear short leaves are to match the front's. I did gain the clearance I needed for my drag link, and the rear now sits a little higher than the front. The springs now have an arch.



Now for the problems!



When the Jeep is on the ground, steering wheel straight = tires straight. When the Jeep is moving, the steering wheel is 1/4 turn to the right. Braking it doesn't pull. Do I just need an alignment?



Other than that, everything works great. No DW, bumpsteer, vibes, anything.



TIA



Carl


You have a spring U bolt that is loose or a centering pin that has snapped by those symptoms.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

Carl Saiyed wrote:

Haven't you in actually "lifted" your vehicle, thereby changing the effective length of the draglink, which is going to affect the orientation of "straight ahead" in relation to steering wheel position?

I all ready did a spring-over on it, lifting it 5.5". It's also got 1" of shackle lift, giving it 6.5". Now with the new springs, it's at about 7-8". I put a 4" drop pitman arm on to correct the steering. Usually with a bad alignment, isn't the steering off ALL the time? ie, when stopped or moving?

Carl

I don't really know. Maybe when you are at rest there is enough friction in the tires, and enough flex in the steering components to allow wheel movement without tire movement. Once you start to move, things "settle".

Are you saying that if you are driving along on a straight and level, your wheel is off center, but as soon as you stop it moves back to center? Doesn't make sense to me.

I'd take a look-see at the draglink. I know when I did my SOA I added a drop pitman to get it back to decent angle, and had to get another draglink that had more adjustment length to it. By the time I adjusted the factory one out to where my wheel was centered, there were only about 1/2" of threads holding the whole mess together.

When i stop, the wheel remains mostly as off center as it was when I was driving. However, when stopped, if I center the wheel the wheels remain straight.

Carl

I'd have to go with the draglink still. It's hard to give a definitive answer from the confines of my LazyBoy, but at the very least I'd say adjusting your draglink will bring the wheel back to center during actual driving. I'd still wager the at rest issue is a steering component friction/flex issue and wouldn't worry too much about it. Look it all over to make sure everything is within spec, adjust the link, and forget about it.

I disagree!

The last person I know to change springs had the exact symptoms. He didn't worry until he was lost, 25 miles from the nearest phone, in a swamp when that loose U-bolt let the axle move back far enough for his driveshaft to fall out. It also snapped the spring pack's centering pin while it was at it. That was Norm Mitchell from this group. He was lucky and heard us on the CB in the area so we tracked him down and helped.

Something is broken or loose to have those symptoms and it isn't a drag link....

A snapped frame can also cause those symptoms....

A steering box snapped loose from the frame can cause those symptoms....

A missing or dead bushing in a main leaf's anchor end can cause those symptoms....

Or a loose spring pack U-bolt.

A dead track bar on a coil sprung unit can also cause them.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

Tom Green>

Maybe maybe not, but in any case that's why I recommended he make sure everything underneath was "up to specs". If I understood the original post, none of these symptoms were present until just after he swapped out springs, so I doubt the busted steering box or broken frame. At worst loose u-bolts someplace but I'd guess the odds of him forgetting to tighten ubolts or replace bad bushings are slim. Possible, but slim.

Well, I even helped Norm do his spring swap. There were 4 or 5 of us and we did torque everything correctly, but the 'used' springs reacted differently than new ones to book torque specs so the u-bolts came loose anyway.

It certainly isn't something that should be ignored.

His u-bolts can also be 'torqued out'. Once they get stretched once or twice, they can go soft and never hold a torque again. I think that is what happened to Norm's.

Technically, leaf spring U-bolts, like head bolts are only supposed to be used once to avoid this exact thing from happening.

Mike

Tom Green>

Hopefully when he finds his fix, he'll post here. I'll be curious to know the result.

symptoms....

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