[redmodelt]

Suggestion; Before you drain it, drill and tap the passengers side housing on the bottom for a 1/8PT plug. Keep a pan under it as you drill and tap. The lube flowing thru the new hole will carry most all the chips that may have gotten in out. Then put the new plug in and after its drained over night, fill with mineral spirits, jack one side up and run for a while to flush the inside then drain over night and fill with new lube. I use one of the allen type brass plugs on mine. 90/140 should work but be sure it is safe with brass, some are not and will eat the brass away. google "mtfca ruckstell lube" or "mtfca ruckstell oil"