04 explorer vibrates really bad above 55mph

[mandabachshawn2@]

Wondering if anyone has had this issue. One day I woke up and drove my car on the highway and noticed really bad vibrations above 55mph thought It was my u-jointa changed those nothing. Had my wheels checked which were just purchased said they were cupped from bad suspension. Anyone had this issue

 

[94Eddie]

If the tires were just purchased did you have an alignment done too? How many miles are on the tires? Are just the front cupped?

 

[mandabachshawn2@]

If the tires were just purchased did you have an alignment done too? How many miles are on the tires? Are just the front cupped?

The tires only have 30k miles rotated every oil changed had them rotated and balanced two days ago. Said it's my suspension that caused it. I also have a bad axle seal in the rear diff

 

[94Eddie]

Sounds like you have had a bad alignment and/or worn steering/suspension components for quite a while. Get the needed repairs done and an alignment before buying new tires. There isn't much that can be done with cupped tires other than replacing them.