My front diff grinds/skips bad when i het hung up/front wheels start to spin. Like its trying to engage both wheels at the same time. Took the diff cases apart and the spider gears are stuck solid. No broken teeth or shavings etc. But they’re definitely binding up. How hard is it to take apart these things? I just separated the case haven’t been brave enough to open up the little ‘clutch casing’ thats attached to the ring gear…