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Author Topic: Bump steer on an IFS  (Read 2753 times)

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AaronB

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Bump steer on an IFS
« on: Oct 03, 2009, 12:44:08 PM »
I have had a lift on my 05' Tundra for about 4 years now and with in the last year or so it has been getting real bad bump steer. I stepped down from 35" tire to a 33" and that seems to be about the time it started. I put in stiffer bushings on the rack and pinion but it didn't seem to help. I'm not sure what else to do! Any suggestions would be appreciated.


and a SAS is not an option at this time.  :hammerhead:  :moon:
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"Never make your passion your occupation. it will loose it's luster and become work. that's why i never wanted to become a gynecologist!"

Quote from: skipnrocks on Nov 08, 2011, 05:36:37 PM
I also taught him how to put in 5min of hard work and then spend 15min staring and admiring what you have done...

Snowtoy

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Re: Bump steer on an IFS
« Reply #1 on: Oct 03, 2009, 04:46:19 PM »
Have you replaced the steering stabilizer?

Worn ball-joints and tie-rod ends can also cause bump steer.
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'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

AaronB [OP]

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Re: Bump steer on an IFS
« Reply #2 on: Oct 03, 2009, 05:49:45 PM »
Quote from: Snowtoy on Oct 03, 2009, 04:46:19 PM
Have you replaced the steering stabilizer?

not sure what you mean? it has rack and pinion steering.
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"Never make your passion your occupation. it will loose it's luster and become work. that's why i never wanted to become a gynecologist!"

Quote from: skipnrocks on Nov 08, 2011, 05:36:37 PM
I also taught him how to put in 5min of hard work and then spend 15min staring and admiring what you have done...

freeze365

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Re: Bump steer on an IFS
« Reply #3 on: Oct 03, 2009, 05:55:49 PM »
It could be your caster.  Is your Tundra lifted?
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AaronB [OP]

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Re: Bump steer on an IFS
« Reply #4 on: Oct 03, 2009, 06:05:15 PM »
Quote from: freeze365 on Oct 03, 2009, 05:55:49 PM
It could be your caster.  Is your Tundra lifted?

yeah it has 6" lift. I just had the alignment done yesterday, toed out a little on both sides, didnt fix the bump steer though.
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"Never make your passion your occupation. it will loose it's luster and become work. that's why i never wanted to become a gynecologist!"

Quote from: skipnrocks on Nov 08, 2011, 05:36:37 PM
I also taught him how to put in 5min of hard work and then spend 15min staring and admiring what you have done...

Snowtoy

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Re: Bump steer on an IFS
« Reply #5 on: Oct 04, 2009, 12:02:20 AM »
Quote from: Aaronb on Oct 03, 2009, 05:49:45 PM
not sure what you mean? it has rack and pinion steering.

You still have ball-joints(suspension) and inner/outer tie-rods(steering linkage) which when worn can still cause bump steer.  There bight be a way to install a steering stabilizer which would reduce the bump steer.

If you don't have it yet, here is downloadable Tundra FSM, that might help you.
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'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod
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