[RICK LAKE]

Dan Ec Need to isolate the play heres the 3 possible things
You said the play is top to bottom
Start with hub bearing, are yours geaseable or presealed units? Grease them and see if play is less or about the same.
Less you need to repack the bearings in the hub assembly
Same is another location for the movement

If the same start to work inward. First place would be to grease the lower control arm bushings on the hub and control arm. Grease them until it comes out and recheck. No play would replace lower bushings and shafts.

Same play would be to see if the right spacer for the drive shaft to the hub is correct. Doug setup my end plays for this and have .005" and .009" on the play with the correct bearing torque.

last check would be the location around the rotor assembly and see if play can be seen The stub shaft bearings could be worn out and have side to side play. You would also have a brake problem with vibration when stopping or noise. Look to see if both pads are the same thickness on the rotor.

Check the bushings or bearings on the lower control arm where it bolts to the cradle again grease and recheck.

I would think it's the end play of the drive shaft between shaft and hub bearing. You didn't say how many miles are on the car and spirit driving you are doing.

I went 3 miles and blew out the r/r hub bearing for being too tight with the spacer. I learned my failure and when back to ERA and Doug. setup took worked perfect. have had no failures in the last 15 years.

Close eye and touch 1 piece at a time for movement, you will feel it when you get the right spot. Good luck Rick L.