I purchase a used SSBC rear 5-lug disk brake conversion kit from a neighbor, and installed it a few weeks back. I noticed once I jacked up the rear and took off the tire, there's about a 1/8" play if you pull the axel out and push it back in. Everything seemed to go in fine, and the spare wheels I have tucked nicely within the wheel well. Is this play normal or is there a shim or something I need to consider. Thanks