strong vibration from steering wheel
hey guys i dunno what it is but i am getting a strong vibration from the steering wheel when i reach 50 mph. it doesn't happen always but about half the time. once i pass 54 or 55 mph its gone. i just got it aligned and got my wheels balanced a couple days ago. any ideas what it could be???
2004 Mustang 3.9L V6 with K&N intake, Dual Flowmaster Super 40s, Motoblue 42% Pulley, GT rear sway bar, drilled and slotted rotors, SCT tuner, Black FR500's 17 by 10.5 and 17 by 9, 4.10 motive gears and FRPP T-Lock.