Vibration 93 Convertable

I just purchased a 1999 93 Convertable. It has a vibration in the front end when excelerating and at about 35 miles per hour. I have heard that this is a common problem. Does anyone know what is the cause and if so where can I buy the necessary parts?

it may be the right axle. the original right inner boot clamp was too small and allowed the grease to ooze out of the joint. park the car, turn the wheels hard to left and look through the right fender well, down the axle and look for axle grease splattered on the oil pan, or around the inner axle boot. if there is grease there, you probably ran the joint dry. you will need a new right axle, spider joint and boot kit. parts are readily available at a dealer. i dont have any aftermarket hook-ups. if the axle isnt leaking and you have exhaused the bent wheel or defective tire strategy, you may need more in depth diagnostics that i cant provide throught the forum. i see a lot of bent wheels cause this too.