Originally Posted by '54 3600
go by the stamped # on the bearing

from OP
Rear wheel outer bearing
GM-144527 Bearing roller, spherical, 2.6252 4.4688 O.D. 0.975 width

also has part number HYD-KD12051Z
Inner or Outer aside... It sounded like this is the PN# off the bearing.


Give me ambiguity
or give me something else