Having taken a closer look at my shim, I see there is a "5" stamped on it. Maybe the 5 is to differenciate this shim from the rest of the shims that typically come in the shim kit (.063, .065, .067 and .069) .Since it is still .065 thick, I am wondering if it originally was .065 thick and hasn't worn a bit and that all the wear came out of the lash adjustment bolt. Maybe I could just purchase a new lash adjustment bolt and that would take me back into spec. What is your experience? Thanks Again - Scott