I need to drain, flush and refill front and rear diffs. Rear is Dana 60 and I can just pull the cover and do it, but I am not familiar with how to do the front Dana 50 in the twin traction assembly. BTW, if you are asking why, it was stuck in mud and muck recently and wheel bearings came apart shortly after. Dont want the diffs to do the same. A good rinse and fresh fluid is in order.