Aaron Messages: 21 Registered: February 2017 Location: Oklahoma
Karma:
Junior Member
I don't know why google group redirects those links, but you can search for the thread title "NAPA SKF-21771 rear bearing seal fails the 0.25" test" on the forum or gmcnet archive and find it.
Ken, I included your name in the search because I remembered you posting the diagram that showed the correct seal depth.