Ed Olcar knows their stuff. Everyone I have sent said they solved their problem and made it look easy.
below is an email from where we get our bearings. they have a real informative website. check it out "i can acquire for you the rw507gr bearing. they are $46.36 each and i can get them into my place in 2-3 days. hopoe this helps. thanx for the inquiry andy atellier@ebatmus.com ebatmus.com springfield, ma"
Axle bearings Hello, once you know what you have, you could check a source I have used for NOS parts. Buickfarm.com He has ALOT of NOS parts for older Buicks and knows what he is talking about. Rich