I double checked and as far as I can tell the 65 differential did not use shims. There is metal plate on each side along with the foam gaskets however it is not like the tappered axles that uses a shim pack. I agree it could be a thrust block issue however it could also be that the axle is too long for the 3rd member. My concern is that if the axles are too long or the thrust block is not seated properly it will not allow the bearings to seat in the cones. As I understand it the adjustment is to properly set the bearing to cone clearance. If additional shims are used at the flange to space the axles out it seems to me that it could result in excessive bearing to come clearance. If I am looking at this all wrong please let me know. Thanks Dennis C. mopar413@xxxxxxxxxxx wrote: > > First make sure that the thrust block is in correctly. Then just start > adding shims to the housing. One on each side until you have slack. You > should not have very much. I adjust mine untill I can barely feel it > move. Be sure to thump the opposite side each time you adjust it. It > sounds like you have the thrust block that has a little dowl like affair > on the end and it is not entering the gear housing just right. Just take > a real good look and see what type you have. 1996 Dodge Ram 3500 Van Conversion 1964 Plymouth Belvedere 318 Auto 1963 Plymouth Sport Fury 383 4-speed 1949 Dodge Pickup 289/C4 soon to be changed 1998 Honda Valkyrie Standard ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.