As we know these drums were factory made by Chrysler in one piece riveted with hub (?) and possibly machined that way 57-59 and probably back to 30’s . . So perfect centering . As I still have no success on finding 11 x2 Dodge rears ,( 2.5 are out there ) — and someone had very poorly modified mine by removing original drum , adding another loose drum ( later mopar ,? and new studs ) They used the stud holes to locate , totally inadequate , — as done.. Runs out .060 + and cut .100 over ( dumb..)! But all that driven by lack of availability ? So in looking , there are new 60-61 11 x 2 drums around for 60-61 Dodge . They are loose without taper hub .But as (I think !) I recall 60 dodge used tapered axles like our 300 do up till 62 . And these new 60 drums fit on front , too (!) So are 60 mopar drums serviced separately from the hub ( why different drums listed in 60-61 vs 59 back? ) Dodge 11x2 59 back with hub drums are impossible to get , we may face this on our 12” drums very soon . Still available ( Kantor last year ) but waning supply and very large $ . Does anyone know about this ? The 60 dodge drum has a defined toleranced pilot hole , I assume for centering , but the 58 hub I have does not have that machining , 1960 must — although I think I can add that ? Maybe 60 hubs all have it , Or possibly same guy cut the hub face to align new drum he used in and out? A drum revision in 60 ? Also in the 60 dodge front and back drums interchange — a very rational reason to allow hub and drum to separate ?? although the 60 hub has rivet holes too Obviously all probably applicable to 300 too , just larger drum ... ?? comments ? Thank you , John Sent from my iPhone not by choice -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/673DEB8A-0578-46A5-A080-E32878A242A0%40gradyresearch.com.