[Xcellr8]

Thanks, Jake and Gelbster for staying with me long enough to figure out what this was. I appreciate the information.

It now appears to me that this failure is just what Jake has warned against. On this car it appears that the original IMSB failed and during replacement, the plug was installed. We don't know what caused the second bearing to fail, but it wasn't because of rancid oil in the shaft, the plug did it job there. So we can only guess that the second bearing most likely failed from debris left behind from the first failure.

Now the question becomes, should we all be using a plug when replacing an IMSB that hasn't failed as a preventive measure?

Thanks again,
Live, read, and learn,
Joe