Cool - I got the master of Mopar rearends
It really is nice BTW to have you mega-experienced guys chime in w/the definitive answers - it is obvious that despite the online harassment, you guys continue to share...kudos!
OK enough lip-service, maybe you can clarify the year-specific part and maybe help me (and hopefully others) understand the info in the archives - which says:
--begin archive snip--
By the way, these are National seal numbers, and BCA bearing numbers. Dennis
8 3/4" 3rd member bearings.
741 case
Differential 57-early 69: 25590/25520
Differential Late 69-74: LM104949/LM104912
Pinion inner: HM89446/HM89410
Pinion outer:M88048/M88010
Seal: 8515N
742 case
Differential : 25590/25520
Pinion inner: HM803149/HM803110
Pinion outer: HM89443/HM89410
Seal: 7216
489 case
Differential: LM104949/LM104912
Pinion inner: M804049/M804010
Pinion outer: M88048/M88010
Seal: 5126
--end archive snip--
I'm assuming that the line starting with "Seal:" is the pinion seal since it comes after the pinion bearing numbers. When I look up the dimensions of these seals - they are different as I would expect considering different part numbers.
Is there a National part number for the "works with both 741 and 489 case" pinion seal -or- is it one of the two listed in the archive (which?). Can you see the confusion?
Thanks again!
