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TasRat
Joined: Mon May 16, 2011 8:00 am Posts: 75 Location: Tassie
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 Posted: Fri Jun 10, 2011 8:41 am |
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My 94 Sierra has an annoying tendancy to pull left due mainly to road camber. Occasionally it pulls to the right also due to road camber.
It has auto locker, spring lift, body lift & 31's.
I've replaced all steering components with new, adjusted the alignment to what I think is spot on, about 5mm toe in, even played with rear diff to align also fitted new front wheel bearings, king pin bearings.
The locker does make it a bit twitchy cornering on occasions but when in a straight line is inconsistently pulling to the left.
Is this common?
Any thoughts?
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Fri Jun 10, 2011 8:44 am |
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TasRat wrote: My 94 Sierra has an annoying tendancy to pull left due mainly to road camber. Occasionally it pulls to the right also due to road camber.
It has auto locker, spring lift, body lift & 31's.
I've replaced all steering components with new, adjusted the alignment to what I think is spot on, about 5mm toe in, even played with rear diff to align also fitted new front wheel bearings, king pin bearings. The locker does make it a bit twitchy cornering on occasions but when in a straight line is inconsistently pulling to the left.
Is this common? Any thoughts?

_________________ I used to be indecisive,
now I'm not so sure.....
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SierraDan

az supporter
Joined: Fri Feb 04, 2011 10:55 pm Posts: 9348 Location: Newcastle
Vehicle: G13BB Jimny
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 Posted: Fri Jun 10, 2011 8:56 am |
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x2.
Mine does it.
_________________ mlm
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zuk_244
Joined: Sun Jun 28, 2009 11:30 pm Posts: 170 Location: Wangaratta, Vic
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 Posted: Fri Jun 10, 2011 8:57 am |
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Ive got a auto locker in mine and it does similar things to what your saying. I once heard it said that they are not really a Auto Locker but a Auto Unlocker, meaning that really they are locked 90%(or more) of the time and only unlock when under enough force.
What im getting at is that because the rear diff would be mostly locked when you driving it only takes a little bit of diffrence in tyre pressure/diameter to make it want to push the car to one side or the other.
Id check tyre pressure and rotate you tyres, see if that helps.
Just my opinion>
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TasRat
Joined: Mon May 16, 2011 8:00 am Posts: 75 Location: Tassie
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 Posted: Fri Jun 10, 2011 9:09 am |
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Yeh your right about auto unlocker, it works a treat on the track
thanks for your comment if its normal I'll stop looking for a fix.
I'll check pressures & also rotate, but tyres are near new. I ever thought maybe swap springs side to side.
Do the rear springs trend to steer as they flex?
I was told recently Jap cars are set up for roads without a camber and then wonder on our roads, and an offset king pin bearing can help compenstate.
Are these available?
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Fri Jun 10, 2011 9:12 am |
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do the side to side swap and try some toe out
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Fri Jun 10, 2011 10:05 am |
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i've found the wider the tyre the more it tends to wander on the road.
my sierra has always pulled left slightly no matter what mods were done to it (ie: standard, with 2" lift and even now SPOA). i consider it a safety feature that i wont pull into oncomming traffic =) lol
_________________ 
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CompTruck
Joined: Mon Sep 21, 2009 11:30 pm Posts: 299 Location: brisbane northside
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 Posted: Fri Jun 10, 2011 12:05 pm |
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try going up the wrong side of the road one time when there is NO CARS AT ALL. the road slopes abit to drain water off so with bigger tyres it usually goes to the left when on the correct side of the road. with the road leaning the other way you will most likely go to the right
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BlueSuzy

az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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 Posted: Fri Jun 10, 2011 3:08 pm |
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It could be your caliper seizing up.. Had that before.
_________________ BlueSuzy wrote: I'm over the G16b's.
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Teracis
Joined: Sat Dec 11, 2010 10:03 pm Posts: 2261 Location: Gold Coast
Vehicle: Daisy
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 Posted: Fri Jun 10, 2011 9:44 pm |
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BlueSuzy wrote: It could be your caliper seizing up.. Had that before.
Check this, Mine used to pull to the left if I let go of the wheel (still does, exactly as you guys describe) and one day it started pulling to the right instead!
Long story short, right caliper was siezing on, then not working when I jumped on the brakes! So it would gently pull to the right, then under brakes pull hard to the left!
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TasRat
Joined: Mon May 16, 2011 8:00 am Posts: 75 Location: Tassie
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 Posted: Fri Jun 10, 2011 10:07 pm |
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I've tried driving on the middle of the road to diffuse the road camber and also on highways that have road camber to the right, the car does tend to follow the road ie pulls to the right but not as much
I had the brakes apart the other day, rear cylinders were seized, fronts are tight but working, this may worth a second look.
Taszook had a front sieze up, never thought of that, thanks.
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