death shakes at 60-70kmh

[Madmac]

my GQ has developed a violent shake at speeds between 60-70km, at other speeds its fine, it shakes the whole front end and you can feel it through the steering wheel. im running simex ETs 32in, 2 inch springs. could it just be a tyre thats out of balance or should i be looking at panhard bushes or something similar?

[bogged]

start with the basics. balance your tires. Borrow some others off someone else even


then look for control arm bushes, wheel bearings etc.

[Tiny]

as bogged says, check wheel ballance etc first, this is the most likley as GQs hate any slightly off ballance tyres, some people find they need to get the wheel ballanced on the car by a truck tyre place.

[muzza_fattire]

Also clean mud/dirt out of disc brake rotor vents.

[SHIFTY]

If it is still there once you have had it balanced replace the panhard rod bushes,upper (small hole) 5513501j10 and lower (large hole) 5513501j01 they should only be about $30.00.

[JeSTeROCK]

Just a couple of observations from my 88 swb with 6" lift 33"x12.5" muddies on 15x8 rims, caster plates

It had wobbles but not too bad
When i changed the standard steering dampener for the 4way model with return to centre it amplified the shakes into death wobbles.

Changed the return to centre spring and steering dampener to connect to the drag link instead of the chassis.

Changed the drag link to an adjustable one, checked & set steering box centre and play, and also set a small amount of toe in. I have been told the death wobbles are mainly caused by toe out.

It still has a small shimmy but nothing like it used to have. Changing to drop boxes or dropped radius arms soon and hopefully all should be sweet.

[Madmac]

i think ill try a different set of wheels and tyres on it first if that solves it, ill see if i can get my ETs balanced. if not ill start looking at bearings and bushes.

[Tiny]

i think ill try a different set of wheels and tyres on it first if that solves it, ill see if i can get my ETs balanced. if not ill start looking at bearings and bushes.

fpr the ets, go to ACE tyres at smithfeild for tab ballancing, these are the guys we use and they are very good at it

[Madmac]

i think ill try a different set of wheels and tyres on it first if that solves it, ill see if i can get my ETs balanced. if not ill start looking at bearings and bushes.

fpr the ets, go to ACE tyres at smithfeild for tab ballancing, these are the guys we use and they are very good at it

what is fpr? is that balancing the tyres while they are on the vehicle?

[bogged]

i think ill try a different set of wheels and tyres on it first if that solves it, ill see if i can get my ETs balanced. if not ill start looking at bearings and bushes.

goto a GOOD tire shop and ask them to be balanced to ZERO / ZERO. which is the best balance you will get.

Means balancing both sides of the tire, you put weights on inside and outside of the rim. Zero out on each side of the tire.

[coxy321]

I thought all wheels/tyre joints balanced using weights on both sides?? I've worked at two workshops over the years, and when you balance the wheel (on digital type ones), it gives you a weight correction of inner and outer. Do some people have their wheels balanced so they're purposely off balance, so to speak?

Coxy