winner99

My 12' GT has pulled to left just a hair for awhile and figured it was just the road but now it seems im pretty much fighting it and cant keep it in straight line at all... Never hit anything or changed up the stock suspension yet. I had an alignment shop check the specs and everything is within tolerance. They straightened out the toe as close to zero as possble (a hair on the positive side) but Im still fighting the wheel pulling to the left.

I had the control arm tsb and steering rack replaced anout 40k miles ago under warranty.

Could this be the A arm bushings just going bad or the epas fighting?(I assume that might feel different though) Maybe even rear steer? Not sure where to begin.

I have new tires on all 4 corners, new endlinks and sway bar bushings. The faster I go the more of a floating feeling I get and the worse it gets. Rough roads also seems to steer it now. Going slow cant really notice it.

jwog666

check tire pressures, and for loose parts. could be anything from that to a radial tire pull.

winner99

I have new tires with proper presssures and checked the suspension 3 times. Nothing is loose. New endlinks as well.

jwog666

try swapping the front tires to different positions if possible, if the pull goes away then you have a radial tire pull, and you should be able to get that covered under the defect warranty

jwog666

another thing, i had a set of aftermarket rims, and due to their offset they tended to follow the imperfections in the asphault and dart the car around a bit, i have since changed rims but am running the same model tire, the new rims have a diffewrent offset, and now my car doesnt dart anymore.

winner99

100% stock no rims.. ive had tire rotations and a new set of tires as mentioned nothing to do with the rims or tires.

Urambo Tauro

Brake drag?

jwog666

brake drag maybe, but you should also notice a hot smell and notice that the left wheel is much hotter then the right. u kinda shot down all the possible causes, it has to be one of them, or the pull is imaginary.

flash_xx

Try a different alignment shop, preferably one that deals with race cars. Most alignment shops don't know crap about what they are doing.

Other than that the only thing that might cause to pull to one side would be the limited slip differential. I remember some Mustangs had an issue where under certain conditions the car would pull hard to the left under power. Maybe yours is failing in some way and sending more torque to one wheel. Grasping at straws here since everything else seems to have been covered.

Sam Strano

Do you have caster lead? Is there more caster in the RF than the LF? That will cause a pull to the left.