Author Topic: Jeep swerves when shifting  (Read 4727 times)

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lqdtrance

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Jeep swerves when shifting
« on: October 15, 2010, 06:12:15 PM »
So, has anyone had this happen? I know I need a new steering box. I am going to upgrade to power steering here in the next week or so. I just put in a new rough country steering stabilizer as well. Not sure what could be causing this other than the bad steering box.

Offline sharpxmen

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Re: Jeep swerves when shifting
« Reply #1 on: October 15, 2010, 06:23:19 PM »
steer bump maybe?
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Dylan

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Re: Jeep swerves when shifting
« Reply #2 on: October 15, 2010, 07:35:29 PM »
steer bump maybe?
Sounds like bump steer to me too.

Is the swerving less noticable if you accelerate slowly?

lqdtrance

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Re: Jeep swerves when shifting
« Reply #3 on: October 15, 2010, 08:33:54 PM »
Yes, it is less noticeable. It acts funny when I accelerate or decelerate around corners too.

Offline Bounty Hunter

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Re: Jeep swerves when shifting
« Reply #4 on: October 15, 2010, 09:30:31 PM »
Sounds like bumpsteer, caused by the front trackbar and draglink not being parallel and a soft front suspension.  As you shift or accelerate/decelerate around corners the front suspension compresses or droops.  If the trackbar and draglink are not parallel, this suspension movement will push your steering to the side.

Offline Jeffy

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Re: Jeep swerves when shifting
« Reply #5 on: October 15, 2010, 09:43:56 PM »
Yup, bumpsteer.
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lqdtrance

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Re: Jeep swerves when shifting
« Reply #6 on: October 16, 2010, 05:35:48 AM »
Good to know. So, Do I buy a new one or is there a way to adjust it?
You said soft front suspension. Everything seems like it's rough. I can feel every little bump. I was going to replace my shocks. I'm sure I could use new ones no matter what.

Offline Bounty Hunter

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Re: Jeep swerves when shifting
« Reply #7 on: October 16, 2010, 06:55:45 AM »
Can you post a pic of your front end, close up between the tires?

Offline sharpxmen

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Re: Jeep swerves when shifting
« Reply #8 on: October 16, 2010, 07:01:16 AM »
Good to know. So, Do I buy a new one or is there a way to adjust it?

post a pic like Bounty suggested

most likely you need a drop pitman arm or a trackbar relocation bracket or both
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

lqdtrance

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Re: Jeep swerves when shifting
« Reply #9 on: October 16, 2010, 12:25:07 PM »
I have tried to upload the pic over 5 times. I re-sized it down to a tiny 256k and now it has been saying that the uploader if full.

Offline sharpxmen

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Re: Jeep swerves when shifting
« Reply #10 on: October 16, 2010, 01:15:31 PM »
host it on photobucket
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

lqdtrance

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Re: Jeep swerves when shifting
« Reply #11 on: October 16, 2010, 03:07:38 PM »

Offline sharpxmen

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Re: Jeep swerves when shifting
« Reply #12 on: October 16, 2010, 03:26:05 PM »
looks like you need to raise the trackbar at the axle end a bit or lower it at the frame end if you can. You can also use a combination of drop pitman arm and trackbar relocation bracket on the axle (doesn't look like you can do it just by itself without the pitman arm since you don't have to raise it that much without the drop pitman arm) - that way you'll have a lower angle as well to compensate for the lift.
but to be honest is not that much off so maybe that's not what you're experiencing, we'll see what others think.
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Torch_Ind

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Re: Jeep swerves when shifting
« Reply #13 on: October 16, 2010, 03:59:58 PM »
do you have a locker? mine does that sometimes cause of my lunch box locker made it noticeable!! whatever way the axle is when you load it up it will push me strait "may not be the way I want to go" until I shift and then it straitens and doesn't do it again till I turn or push it hard!!


lqdtrance

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Re: Jeep swerves when shifting
« Reply #14 on: October 16, 2010, 06:14:39 PM »
I think it may be a little bit of the lockers and steering as well. So, a drop pitman arm and trackbar relocation bracket? I'll check around for some good prices. I plan on getting a new lift here soon. This one is tweaked a bit. The driver side front shackle is leaning to the driver side. The shackle isn't bent and the bearings are good. So I think some how I warped a spring.