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Pulling from the rear under acceleration

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Old May 11, 2008 | 10:56 PM
  #1  
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Default Pulling from the rear under acceleration

On saturday, I had 2 refurbed wheels fitted to the drivers side of my car. I had the original tyres swapped onto the refurb wheels, had the wheels balanced and then had them put on. I needed a new tyre on the rear passenger side so had that done at the same time.

Then it was off to another garage to have my Invidia exhaust fitted. I must say, it does sound amazing!

So all in all, no work too complicated. The problem now is that when I accelerate, it pulls to the right, and when I let off the accelerator, it will pull back to the left in the line it was driving before putting my foot down. The steering wheel will stay at the same position, but it pulls from the rear. Its really annoying when doing this on the motorway. Everytime I try to change gear, my car swerves all over the place.

Has anyone got any suggestions as to why it does this? I think my rear drivers side lower ball joint may need replacing cos when a mate replaced the driveshaft 2 weeks ago, he wasnt gentle with the ball joint and grease leaked out!
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Old May 11, 2008 | 11:00 PM
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From: Tyne Valley
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Have you checked your tyre pressures?
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Old May 11, 2008 | 11:05 PM
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There was someone else on here just the other day complaining about how much their car pulls from one side of the road to the other. Turns out he had a slow puncture. It's unlikely to be this as you've just had the tyres/wheels recently fitted but you never know.
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Old May 11, 2008 | 11:27 PM
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As above. It's your tyre pressures. Mismatched tyre pressures make the torsen diff do funny things.
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Old May 12, 2008 | 02:33 AM
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Probably tyre pressures, but it could be mismatched tyres too. I take it that you've got the same tyres on the rear?
A significant difference in tread depth "might" cause some pulling I suppose.
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Old May 12, 2008 | 03:16 AM
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Mine did the same thing the day i got it. Told the guy it could be the tracking and got
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Old May 12, 2008 | 10:36 AM
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Thanks for that guys. There was a 5psi difference between the 2 rear tyres. It has helped alot but the problem is still there slightly. Do you feel this could be the difference in the depth of tyre tread or should I investigate further?
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Old May 12, 2008 | 12:55 PM
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From: Llandudno
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Call in Sherlock Holmes!

Any slight difference twixt pressures, tread depth, tyre make etc on the rears can give an adverse effect. Remember you have a limited slip diff and if it gets "wound up" you will cerainly feel the difference as one side can virtually take over.

The replaced drive shaft gives a clue - why was it replaced? Have you had the diff checked?
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Old May 12, 2008 | 01:35 PM
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From: Warks
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also you have one new tyre and one original on the back, yes?

perhaps release compound on the new tyre and none on the original one...give it a few (100+) miles and see.
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