Originally Posted by tclederman
Dave,

What years 235s (and, 261s) will that work on?

Thanks,

This seal is not designed to work on an engine with shims on the mains.
Chev used shims on the mains till mid 1955.
There are shims listed in the parts book for later engines, but I have never seen them in a engine.
I think they are listed for use in engines where the journal dimensions are off slightly.

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