I have had the pleasure of replacing the locking hubs and one wheel hub assembly on my '02 F250. About an 1.5 hr job and $300 later with no problems other the pain in the *** of getting the four studs out. I guess the economic downturn has it the auto parts industry. The wheel hubs don't even come with studs. WTF? Went with Warn lockers. Has anyone that has done this had any reoccuring problems?