I have a 1995 Kodiak 400 4x4. The rear wheels are not turning at all, just the front wheels. The u-joint by the middle gear is good. I can't remember is there another u-joint inside the booth going to the rear end? About 5 years ago I had the rear end out for new bearings and I beleive there is another u-joint connecting to the middle gear to the rear end.Jacked up the rear wheels turn freely when in gear.Is this normal? Has a little loosest in rear axle. Needs some help. Thanks in advance.