1998 Jeep Cherokee ACCESSIVE AXLE SIDE TO SIDE PLAY

SPECIFICATION ON AXLE SIDE PLAY. WHAT ARE THE TOLERANCES. HOW DO YOU FIX IT,

YOU CAN FEEL THE SIDE PLAY WHEN YOU SHAKE THE BACK TIRES AND SOMETIMES IT WILL MOVE FORM SIDE TO SIDE JUST SITTING IN IT AND IT WILL ROCK BACK AND FORTH. WE BOUGHT THIS VEHICLE FROM AND ELDERLY LADY SO IT WASN'T ABUSED. IT HAS ALWAYS DONE THIS SINCE WE BOUGHT IT 3 YEARS AGO.

THANK YOU