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This comes with the thicker washer as pictured. Fit tested by an active Vintage Cadillac repair shop. If the bolt does not go in deep enough or not going in smooth, you need to clean out the trheads on the crankshaft. There is normally supposed to be cork in the hole to keep the debris out of the threads. These cars did not come with bolt from the factory.
Fits: All 1964-1967 Cadillac Models
