I started pulling apart my front knuckle for a long over do rebuild. And I came across some missing parts? This is a March 1972 FJ40 with the warn barrel style lock-o-matic hubs. There should be a thrust washer between the spindle nut and locking ring nut (dealer installed with the little allen keys)-correct? If yes, mine is gone? I have searched and cannot find an available thrust washer for my year. 1975 and up pop up everywhere on the usual parts sites. I know 72s were a bit special as they were moving over to 73. I have come across 70, and 71 parts factory installed. Does anyone know the size and thickness I would need to source this? My locking nut is a 50 mm not a 54 and has an inside diameter of 36.55/37mm. I used a 50 mm socket to get it off. I found a source that sells thrust washers that measure 37 mm ID, 57 mm OD and 3.5 mm thick-which will fit. My main concern is the thickness? Anybody got one laying around they can measure or if anyone has 2 (yes I tore into the other side and that one is missing too) they want to get rid of let me know. Why is it NEVER EASY...