Bad Shuttering Problem???

[fox]

Well i have this little problem, when ever i go faster than 55 my car begins to shutter. It has 33's a 3" body lift,RS9000's, and rear add-a-leafs. so I am really going 60 or so when it begins to shutter. what do i mean when i say shutter, the opposite front tires bounce up and down violently.
i have recently replaced the ball joints so i have no idea what it could be, please help.

 

[Swee294349]

Have u checked out your U-Joints?

 

[fox]

no i don't think that that is sorce of the problem, i am wondering if anyone has gotten new tires and had this happen, i'm going to have them checked on monday

how would i check them to find out if they need to be replaced, i heard that the good u-joints are only 20 dollars or so.

 

[Jefe]

I'd check your tire balance. I had the same problem with my 31's

 

[fox]

cool that gives me hope, cause i really am sick of fixing things i just want to build up to be the best 4x4 exploere out there.