If you have the axle already out and there are no stickers on it that say to use special oil or additives, then you are left with either disassembly or the spinning tests. If the axle has wheels/tires on, try to roll the axle and 'steer' it...if it turns easily = open diff, turn hard = LSD! <img src="/forums/images/graemlins/smile.gif" alt="" />


1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya