i cant believe i forgot to put this back on--1/2 ton sub-both sides , fronts-outer axle shafts large plastic washers-they go on the shaft after the larger dust or dirt or water shield ring thing-it doesnt affect my 4 wheel but am i looking at poss water or mud getting in---the plastic washer is only about 1/8 thick- i dont get to do any muddin-but i do like high water--any thoughts or info--Thanks

I always try to grab the bronze ones from the junk yard and use them over the plastic ones.