Unstable Back End!

[R32 GTSTT]

I have a R32 GTST with stock suspension.

The car used to handle fine. It know seems to jump/hop side to side when going over very small bumps cruising at 110mk/hr.

It feels very unstable and like you have no control. Someone told me maybe wheel bearings?

Any ideas? cheers

[PuppaDuck]

There's plenty of components that could be helping out there.

It does sound suspension related if it is ok unless going over bumps.

Might be time to change the bushes or something like that.

Pretty cheap if you just install pineapples to make it tight again.

Check for wet or oily patches in the general area around the subframe.

If it isn't suspension related, perhaps something simple like a tailshaft bracket has come loose.

Or it could be something dodgy like your exhaust is hanging loose.

Either of these rocking at high-speed would amplify the effect of the wobble.

Depends what you are feeling. Wouldn't hurt to take a quick look to rule these out.

You should be able to give it a decent overview yourself - from gearbox back.

Try and shake everything by hand and if anything moves, that'd be the first place to start.

Once the initial check is done, best to get it onto a hoist and give it a proper look, especially if it is influencing hi-speed control like that.

Should be easy to rule out wheel bearings if you aren't hearing the low hum noise at high speeds.

If you drift, then who knows.

Might just have to take the trusted mechanic for a spin and see what they think.

Oh - Does it feel like your suspension is bottom-ing out ? Perhaps just need a new set of springs, or if there is oil running down your shocks, perhaps time to get a new set of those.

Hope this helps.

[paulR32gtr]

Don't mean to hijack or anything - related really - but what the hell are pineapples and what exactly do they do?

I have heard about them, seen pics of them but just lost on where they go in the susp. and their function...

[MADGT4]

Seriously just take it into one of those pedders suspension checks... Cheap and your not obligated to have any work done afterwards.

Probably the quickest way to find out what the issue is because as above it could be numerous things.

[R32 GTSTT]

Thanks PappaDuck for all your help.

I can rule out anything being loose now.

The car has got pineapples.

When I think about it more I think it is suspension related.

The front end has to tendency to bottom out going over bumps and makes a loud bang noise.

If i remember corrrectly it all seemed to change after one drifting eposide. Mates have told me the rear tyres look wobbly and it kinds feels likr that a bit aswell.

I'll put it on a hoist and see if i can find something wrong with suspension.

[Sydneykid]

The first place to start, as always is;

How low is it, centre of wheel to guard on all 4 corners?

Cheers

[WazR32GTSt]

$14 pedders 28-point steering and suspension safety check

that's not a lot of money and a lot of information that they can give you, plus it only takes an hr

[skyline2485]

mine is doing the same thing. are you hearing a sound like something is hitting something else. like metal to metal, my left rear strut is blown and as soon as it went out mine started hopping left. its scary feeling. check and see if your struts are good. im replacing mine and ill let you know if it fixes it. also yeah what are pineapples

[BHDave]

check your alignment. Check your rear tie rods and outer ball joints for play. Hicas is locked?

[skyline2485]

my hicas was unplugged and i plugged it back in, do i need to reset the ecu before it will click back on or anything

[Dahtone Racing]

i had issues with my car too

unred out to be loose bolts in the back of the rear hubs and loose lower control ball joint nuts in the rear

[Cubes]

Mine was slightly loose; turned out to be the subframe bushes.

Was good for a while then started getting really loose and getting mega rear end steer when hard on the acceleration.

Hicas rack was stuffed; fit lock bar all good.

[bubba]

^^ Had pretty much the exact same thing as Cubes, lockbar fixed it

[32GTRVSPECII]

It will either be your subframe bush's or your ball joints.

Cheers, mick