If I were you mate i'd get digital tracking done...i've forgot what they call it. When I first got my mera I was putting tyres on and they were dead within 2-3 months. I had the tracking done at 3 different garages telling me it was bang on etc etc and lo and behold the tyre wear was still the same. I thought the suspension was fooked at one point was gong to change wishbones etc.
I went to E.T.S. & they use a different system where they put something on each of the wheels and it's all read by a computer. The tracking was out by a mile on there!! I'd lost a good £300 by this time (Yoko's & Goodyears etc) so it was best £20 I ever spent.
It also shows Camber/Castor angles showing exactly if anything is out of line in the steering/suspension system so you know if anything is fooked etc
