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Unread 11-09-2009, 09:49 PM   #1
Billyjon1
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Steering Shimmy and Wandering

Just like the title says, thats my problem. Shimmy at around 40MPH, Jeep begins to wander at 50.

Things that have been done in past 6 months...
New Rotors
New Pads
Tires Balanced x2
Aligned x2
New Ball Joints(Uppers and Lowers)
New Tie Rod Ends(Inners and Outers... including $120 drag link)
New Hubs
All suspension components cranked down and checked twice.
Tires Rotated

It's not a huge problem, it's definitely tolerable, would just like to know if anyone else has any other suggestions I have not tried. I understand that with short, unadjustable control arms, the front axle is pulled backwards giving messed up caster angles that can lead to my symptoms(especially since I have 6 inces of lift in the front with 4 inch lower CAs and STOCK uppers). I DO plan on converting to a fully adjustable high clearance long arm kit within the next few months so please no harsh criticism lol.

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Unread 11-09-2009, 09:51 PM   #2
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Your caster is likely very crappy. Get adjustable arms so you can pull it into spec and try again. And a little bit of wander towards the low side of the road is normal and is accentuated with some tires.
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Unread 11-09-2009, 09:56 PM   #3
Billyjon1
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Yea that's what I figured, but it's weird because I've had the tires for close to two years now and they have worn excellently(I would definitely recommend Baja Claws to anyone looking for a new set of tires), and this wandering problem has seemed to just come up recently
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Unread 11-09-2009, 10:01 PM   #4
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Rotate them. And in that case, it 'might' be a tire problem. Or you're just now noticing it. Either way, with that kind of height, you could probably use some adjustable arms....and why not remove the 2" spacers in the front? That's a lot of height regardless of tire size. And I see you're from Cocoa Beach. Know Scott Nealon by chance?
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Unread 11-09-2009, 10:01 PM   #5
Unlimited04
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yup, caster is the likely culprit. you won't notice any tire wear issues with caster, just with camber and toe.

when they balance the tires, make sure they ROAD FORCE BALANCE them. a one sided static balance won't gain you much.
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Unread 11-11-2009, 10:07 AM   #6
Billyjon1
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I got the spacers because I like the "bulldog" look, one of my buddies did it on his Cherokee and it looked great. Like I said earlier though, it doesn't drive too bad, I drive it two hours everyday back and forth to school. The name sounds familiar, but I can't put a face to it right now.

And about the road force balance I have searched high and low for a place that does it around here and I was lucky enough to find the ONE place within 20 miles who would just do conventional balancing on 35's, which I can't believe seeing as how many new trucks and SUVs are coming STOCK with tires close to that size!!

Thanks for the help though!
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Unread 11-11-2009, 10:11 AM   #7
Wheelin98TJ
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Enter your zip at the link below and it will tell you probably 25-50 shops within 10 miles of you that have a road force balancing machine.

Hunter GSP9700 Wheel Vibration Control System
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Unread 11-11-2009, 10:55 AM   #8
Max-Q
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Quote:
Originally Posted by Wheelin98TJ View Post
Enter your zip at the link below and it will tell you probably 25-50 shops within 10 miles of you that have a road force balancing machine.

Hunter GSP9700 Wheel Vibration Control System
Thanks for the link. Lucky for me my friend and fellow Jeeper is the manager at one of the places that has the machine.
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Unread 11-11-2009, 12:19 PM   #9
jeffb_79
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Getting your tires balanced probably won't fix your wandering issues.

Did you get the jeep aligned after you replaced the ball joints?
If not, your caster is probably way off. My caster read 5* before I replaced my shot ball joints. Afterwards it was at 3* and would wander all over the place.. to the point that I couldn't take my eyes off the road and changing lanes was dangerous.
I'd be willing to bet you're also getting pretty good driveline vibes above 50mph.
Get underneath and re-adjust your pinion angle. Your caster should be close to where it's supposed to be afterwards.
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Unread 11-11-2009, 01:07 PM   #10
Billyjon1
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I have free alignments for the next 3 years so I get one whenever I mess around with that stuff and no vibes, I think it's probably the fact that the CAs are too small for my lift
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Unread 11-11-2009, 05:30 PM   #11
jeffb_79
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OK... so what was you caster on the last alignment?
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Unread 12-21-2009, 03:02 AM   #12
UnderTheWooDd
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Isn't Caster Adjustment pretty irrelevant being that the Knuckle Arms ARE WELDED TO THE AXLE HOUSING!!!!!?????
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Unread 12-21-2009, 07:43 AM   #13
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Quote:
Originally Posted by UnderTheWooDd View Post
Isn't Caster Adjustment pretty irrelevant being that the Knuckle Arms ARE WELDED TO THE AXLE HOUSING!!!!!?????
Um..... that's what adjustable control arms are for.
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Unread 12-21-2009, 07:44 AM   #14
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Quote:
Originally Posted by UnderTheWooDd View Post
Isn't Caster Adjustment pretty irrelevant being that the Knuckle Arms ARE WELDED TO THE AXLE HOUSING!!!!!?????
Or caster bolts if you don't want to get adjustable arms.
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Unread 12-21-2009, 07:59 AM   #15
Imped
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Quote:
Originally Posted by UnderTheWooDd View Post
Isn't Caster Adjustment pretty irrelevant being that the Knuckle Arms ARE WELDED TO THE AXLE HOUSING!!!!!?????
I think you may be referring to camber. That's not adjustable, at least easily. Caster is adjusted by rotating the axle housing around itself (think Z axis).
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