Changed Clutch now gettin a vide under load

I chnaged the clutch in my girls saturn SC2 everythings good except when your under load in 1st 2nd and 3rd it shakesalmost like a side to side shae cant really tell whats goin on . not too bad but def noticableit does it in 4th and 5th but not as bad.Any ideals ? Thanks

did u have the fly wheel resurfaced also did you repleas the releas bearing