Hey guys, I posted on Moddedmustangs with my issue but theyre all kinda stumped like I am so I thought I would give here a try. I did an SRA swap to my car. The rearend came out of another 99 cobra that did the swap. The rearend has an E locker and stuff. Only thing I have done to it is I had the axle tubes welded. The wheels turn easy by hand but then when driving at low speeds feels like it fights itself and at high speeds vibrates pretty bad. I got the driveshaft balanced with no change. My next check is will be me pulling the cover and checking bearings and things. I dont really understand what the problem could be. Also the car has traction control tuned off. with IRS the light on the button was alwas on signifying that it was off. That light is no longer on and never comes on when the button is pushed. Is there a traction control sensor or something?