The left front axle seems to have a small leak and some play at left front differential where axle goes into. Hoe much play is normal? The service manual I downloaded does not cover this in detail. I have built GM 10 bolt,12bolt and Dana 70-80 diffs. How hard it it to replace on a 1998 KQ 300. I know how to set pinion depth and backlash on trucks but have never tackled a atv front end. Thanks