I sent an email to:
Marty's GMC Dealership in Mass.

email to them:

My old Bearing is stamped: HYD - KD12051Z

My old bearing GM # 144527
was superseded to: GM # 9412426

Is the new # the same as the old bearing ?

Thank You,
George


Answer from GMC Dealer:

Correct: 9412426 replaced 144527


GP

1954 3600
A big help to many on the Bolt
Now cruising in
The Passing Lane