Bluemustang
Well-Known Member
You could be having some tramlining as well. Wider tires and lower, tighter ride height can do that. You need to find out if it is actually pulling or if that is just the tramlining.
As has been said, you need toe IN on the rear. 0.1-0.15 degrees per side and make them as even as possible. Uneven camber can also cause a slight pull because of the camber thrust effect. On uneven surfaces, the negative camber on the wheel with more traction will make the car tend to pull in the other direction. This is almost unavoidable especially if you lower the car or have wider wheels/tires. Our Mustangs like to tramline a lot. Alignment can mitigate it some though as well as new tires. There is also the bumpsteer effect which all of our cars have. This gets worse as you lower the ride height without correcting the front geometry. But you haven’t lowered it enough that bumpsteer should be a major issue.
Alignment and re-check of the suspension components and clocking of bushings are your areas to look for I think.
As has been said, you need toe IN on the rear. 0.1-0.15 degrees per side and make them as even as possible. Uneven camber can also cause a slight pull because of the camber thrust effect. On uneven surfaces, the negative camber on the wheel with more traction will make the car tend to pull in the other direction. This is almost unavoidable especially if you lower the car or have wider wheels/tires. Our Mustangs like to tramline a lot. Alignment can mitigate it some though as well as new tires. There is also the bumpsteer effect which all of our cars have. This gets worse as you lower the ride height without correcting the front geometry. But you haven’t lowered it enough that bumpsteer should be a major issue.
Alignment and re-check of the suspension components and clocking of bushings are your areas to look for I think.
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