Thrust angle

Hi, hope someone can help.

If you have a car which has uneven toe at the rear, say 2mm toe in on the LR wheel and 0 toe on the RR and really isn't easily adjustable how do you compensate when adjusting the front toe to keep that correct but still keeping the steering straight ?

Thanks, Kester

"Not easily" means not impossible - what is the vehicle?

Because of the difference at the rear - you have double checked it isn't a slightly bent wheel, or whatever - there will always be a slight crab because of the rear steering until it's corrected. When you say "keeping the steering straight", I assume you mean the steering wheel centred when driving ahead? If so, you will need to bias both the left and right front toe by 1mm to the right - if the roads where you live have a lot of camber (curve for drainage), you could increase that by another mm, or so, to counter the tendency to move the car to the left.

Thanks for the reply Gord.

You have understood what i meant . I have a 2004 Ford Fiesta race car, unfortunately it isn't road legal so i can't easily test drive it apart from at the track.

The rear stub axles have to have shims fitted to correct camber and toe which isn't a quick job, well for me it isn't.

So would i set front toe to what i want first as if the car was straight at the back and then toe the RF out 1mm and LF in 1mm to keep the steering straight when driving ?

In theory, yes - but in practice I'd probably just do it as a normal alignment unless the steering wouldn't centre on the splines and I got annoyed by it being 'off' slightly.

HOWEVER, I understand that some vehicles, especially those with electric power steering, are very fussy about the column being correctly aligned to the 'straight ahead' position, the

Thanks for the reply Gordon.

I will fix the issue with the rear toe anyway but i was curious on how to compensate for thrust angle using string as with a shop aligner doing a road car with a rear beam that isn't quite straight they automatically compensate to keep the toe correct and the steering wheel straight when driving.