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Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 7:42 am
by CLUMZ1
Gidday,

Looking to find a workshop in the Wellington area to fix my truck for a reasonable cost, preferably somewhere with experience with Nissans or even better, Safaris.

Basically my issue is that when I'm driving; if I don't hold the wheel the truck will go over a bump, cause bump steer which vibrates itself into a worse and worse state, eventually (5 seconds ish) the wheel will be moving 2-3 inches either way, and won't stop until I grip the wheel hard.

Any ideas of cause/shop recommendations would be appreciated.

CLUMZ1

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Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 9:10 am
by badnuz
a decent alignment/balance and steering damper

GGuys :)

Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 11:17 am
by muddy
Most likely needs new panhard bushes. Not a difficult job - especially if you have access to a decent press, although I managed to do mine using an ordinary bench vice... But first check the panhard bolts are nice & tight...

Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 1:52 pm
by CLUMZ1
Just purchased a 3" lift kit (springs, shocks, brake lines & castor correction bushings)

muddy wrote:Most likely needs new panhard bushes. Not a difficult job - especially if you have access to a decent press, although I managed to do mine using an ordinary bench vice... But first check the panhard bolts are nice & tight...


Wondering if rather than replacing bushes I'm better off replacing the panhard rods with adjustable ones?

Something like; http://www.trademe.co.nz/motors/car-par ... 547538.htm
Tough Dog Adjustable Panhard Rod GQ/GU $600 (front and rear)

Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 2:19 pm
by Taz
Borderline worth it for only a 3" lift imo. Other opinions may vary. If you've got the cash to burn I'd go for it otherwise you'll do bushes for both for less than the price of one adjustable arm.

Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 2:59 pm
by CLUMZ1
Cheers for that Taz, I'll have a look

Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 3:13 pm
by Sadam_Husain
quick question coz its not that clear, have you put the 3" lift kit in and now you've got problems or have you got problems without the lift kit installed

Re: Shaking Safari steering (GQ)

Posted: Tue Feb 26, 2013 4:00 pm
by DaveM
Can be a number of things. I run 80mm lift, and standard panhards without problems. My last 4 shaking problems have all been different, panhard bushes, radius bushes (chassis end), king pin bearings and the castor bushes chewing out within 6mths (rubber bushes too). I now have vibrations while braking, so new rotors will be next :roll:
Have a nosey underneath and check all bolts etc are there on panhards, radius arms etc

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 7:30 am
by CLUMZ1
DaveM wrote:Can be a number of things. I run 80mm lift, and standard panhards without problems. My last 4 shaking problems have all been different, panhard bushes, radius bushes (chassis end), king pin bearings and the castor bushes chewing out within 6mths (rubber bushes too). I now have vibrations while braking, so new rotors will be next :roll:
Have a nosey underneath and check all bolts etc are there on panhards, radius arms etc


Thanks mate I'll be doing that ASAP

Sadam_Husain wrote:quick question coz its not that clear, have you put the 3" lift kit in and now you've got problems or have you got problems without the lift kit installed


No - lift not yet delivered. Brought it in from Aus at what looked like a sharp price... then I got sprung with GST at the border. OUCH!

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 7:53 am
by Sadam_Husain
CLUMZ1 wrote:
No - lift not yet delivered. Brought it in from Aus at what looked like a sharp price... then I got sprung with GST at the border. OUCH!



get the kit put in before you go spending a whole pile of money getting the old suspension fixed and overhauled just to rip it all out to put the new stuff in, x2 on G.Guy they live and breath safaris down there albiet supercharged LS1 Saf's :D

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 3:54 pm
by DaveM
Sadam_Husain wrote:
CLUMZ1 wrote:
No - lift not yet delivered. Brought it in from Aus at what looked like a sharp price... then I got sprung with GST at the border. OUCH!



get the kit put in before you go spending a whole pile of money getting the old suspension fixed and overhauled just to rip it all out to put the new stuff in, x2 on G.Guy they live and breath safaris down there albiet supercharged LS1 Saf's :D

x2, once the lift is in, the problem may disappear, but have a look at the obvious in the meantime or get it to G Guy to have a look, as you don't want to be driving a vehicle with that type of problem while waiting for the kit.

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 4:45 pm
by coxsy
get drop boxes not caster bushes .the front arms will point downward and will not lift over bumps, the arms need to be flat to work, honest :D

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 6:32 pm
by ToyRover
mate of mine safari was doing this turned out to be the steering box

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 7:43 pm
by SV1K
coxsy wrote:get drop boxes not caster bushes .the front arms will point downward and will not lift over bumps, the arms need to be flat to work, honest :D

I don't agree with this, I have castor correction bushes and don't have any problems at all.

Reece

Re: Shaking Safari steering (GQ)

Posted: Wed Feb 27, 2013 8:44 pm
by Nizzanman
From what I understand, caster bushes up to a 2 inch lift and drop boxes for anything 2 inch upwards. I have drop boxes on my 3 inch lift and they are great.

The death wobbles could be caused by a whole host of things, steering damper, worn panhard rod bushes, worn radius arm bushes, incorrect king pin bearing preload or worn king pin bearings.

Re: Shaking Safari steering (GQ)

Posted: Thu Feb 28, 2013 4:20 am
by DaveM
Drop boxes were originally designed for 4"+, now they go as low as 3", but are not necessary on that size lift. You lose articulation if you go castor bushes, but save hundreds in the process too, so personal choice really. Anything 4" or more I run boxes.

Re: Shaking Safari steering (GQ)

Posted: Thu Feb 28, 2013 5:54 am
by mudtroll
CLUMZ1 wrote:Gidday,

Looking to find a workshop in the Wellington area to fix my truck for a reasonable cost, preferably somewhere with experience with Nissans or even better, Safaris.

Basically my issue is that when I'm driving; if I don't hold the wheel the truck will go over a bump, cause bump steer which vibrates itself into a worse and worse state, eventually (5 seconds ish) the wheel will be moving 2-3 inches either way, and won't stop until I grip the wheel hard.

Any ideas of cause/shop recommendations would be appreciated.

This might be stating the obvious, but given the picture of your truck covered in mud check that you haven't got a build up of mud on the inside of the rims & or in the tyres. Only time I've seen death woobles as bad as you're describing is because of this or badly bent tie rods etc from hard off roading


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Re: Shaking Safari steering (GQ)

Posted: Thu Feb 28, 2013 7:28 am
by CLUMZ1
Interesting that you mention drop boxes verses castor correction bushes, I've bookmarked a thread over on patrol4x4.com with some discussion over this;

http://www.patrol4x4.com/forum/suspensi ... ewb-95928/

Short Y60 wrote: If you can afford plate you can afford to save a little more for drop boxes! Lol
Heirachy of caster correction:
Bushes
Plates 150/200
Drop boxes 350/400
Drop arms
Superflex/drop arms
LONG ARMS!!!!

Re: Shaking Safari steering (GQ)

Posted: Thu Feb 28, 2013 12:01 pm
by DaveM
Drop boxes are good, but once you factor in the cost of boxes/cert, they get up there in price pretty quick

Re: Shaking Safari steering (GQ)

Posted: Thu Feb 28, 2013 12:13 pm
by keithal
DaveM wrote:Drop boxes are good, but once you factor in the cost of boxes/cert, they get up there in price pretty quick

your gonna have to pay for cert for a 3" lift anyway so why not do it all at once instead of having to cert again later on down the track

Re: Shaking Safari steering (GQ)

Posted: Thu Feb 28, 2013 4:14 pm
by DaveM
keithal wrote:
DaveM wrote:Drop boxes are good, but once you factor in the cost of boxes/cert, they get up there in price pretty quick

your gonna have to pay for cert for a 3" lift anyway so why not do it all at once instead of having to cert again later on down the track

I've had mine checked by cert guy and told it doesn't require one. Even so, my Safari is fine with castor bushes, so still save $300-600 for the price of drop boxes, but each to their own.

Re: Shaking Safari steering (GQ)

Posted: Fri Mar 01, 2013 2:15 am
by keithal
DaveM wrote:
keithal wrote:
DaveM wrote:Drop boxes are good, but once you factor in the cost of boxes/cert, they get up there in price pretty quick

your gonna have to pay for cert for a 3" lift anyway so why not do it all at once instead of having to cert again later on down the track

I've had mine checked by cert guy and told it doesn't require one. Even so, my Safari is fine with castor bushes, so still save $300-600 for the price of drop boxes, but each to their own.

if im not mistaken you must have cert if suspension is raised more than 50mm

Re: Shaking Safari steering (GQ)

Posted: Fri Mar 01, 2013 4:12 am
by DaveM
keithal wrote:if im not mistaken you must have cert if suspension is raised more than 50mm

I guess when you have a lift that is 80mm new, that has sagged since, the cert people might take a different view? Not sure, but it's been checked and cert guy said it's no problem, but he pointed out as soon as I had modified panhards, castor plates or drop boxes, I would need one.