Rear Axle or Gear Confusion

>If you're SureGrip is working, and it is a clutch-type, this may or may not NOT be normal.
> If your SureGrip is a Cone-Type, and working, this is probably normal.
> but if it is NOT a SureGrip, or it is a worn-out Cone-type, then;
What you are feeling is the pinion gears climbing up and down the cross-pin; and .25inch of wheel-travel is actually very good and nothing to worry about.
Ok great, thanks for the info.