Have a 2006 Rubicon LJ, both of the rear axles seals were leaking and making noise so I decided to take them off and press on a new Spicer kit (PLAT-SPICER-KIT90). Both bearings were seated well and moving freely after install. The first axle installed with no end play, but the second one has about 1-2 mil of in/out play in it with an audible click when pressed on and jacked up with the tire on. I took the axle back off to confirm the bearing has play and not the diff. Is this normal or is this just a manufacturing defect?