Yeah, 1/5 rtr isnt really an rtr. And at $900.00 you got the cheapest name brand you could get. The dbxl is known for tossing pins. The boots wont help that. They will keep the pins from wearing as you can grease them. Lockers are bad mojo. You can go off the manual for size and get a decent bearings off eaby or a local bearing supplier. Or get the fast Eddy bearings. Go get some 500k + diff fluid for it. And really I've had my dbxl going 6 years, and bought it used with very little mods to it. It's been decent. Flm= fast lane machine. They make drive shafts and arms for Rc's.
And the water and mud had nothing to do with the issue. The pins just come out if not loctited on. This is a very normal dbxl issue. The diff isnt. That's an oops. And +1 on the dbxl e.