An easy way to diagnose this is to drain the fluid and look for chunks of metal. You should also check the carrier bearing on the drive shaft for play while you're under the bike. The front diff fluid should be fairly clean. If it’s a milky color you probably have water in it, which will trash the differential pretty quickly. The differential fluid is oil colored, similar to motor oil, while the rear transaxle fluid is dark purple/blue. If you don’t find any metal chunks in the diff fluid but instead see shavings on the drain plug, the lash could be off in the differential, causing the gears to grind down. If you inspect your driveshaft, it should have a bit of play in it because of the circular cushioned boot in which it rides. Most Rangers, in fact, have a little slop where the axles meet the differentials, it’s completely normal. But if you think something is off in your General’s front differentials and can’t figure out what it is, don’t hesitate to contact us and we’ll help get your General back up and running like new.