Thank you all who responded to the bearing question re: rear ends. Very informative replies. I can't find the time to answer each one individually. So - thank you all ! Another question, please, to this group: could somebody tell me specifically what rear end assembly, complete, from a later Mopar without the tapered axles will fit under, say, a 60 thru 64 Chrysler 300? The few that I have measured have had different spacings between the rear spring perches. I do know that this swap is do-able, I have seen it done, and, indeed, my 300G convert. has such a rear end under it now, but I didn't do it ! No, I am not thinking of doing this modification to a Letter car. But I would like to do it to my '62 NYker wagon, and would like to locate and buy, in a junkyard, a complete suitable rear end asembly. Just not sure what matches up... Sincerely John