[Rat_Pack]

DarrenX33, the original center caps have a depth of approximately a 1/4" where the emblem is at. Sometime in the early 80's the tooling was starting to wear out and the depth was changed to just under 1/8". This is the one you will find NOS from GM and all parts vendors that still carry the GM part. The new reproduction made by Goodmark has the correct depth and is identical to the original GM part. For some reason the depth on the Oldsmobile Super Stock I rim center cap never changed by GM. The only visual difference between the Chevrolet cap and it is the 3/16" styling ridge around the bottom of the cap where it mates to the wheel................RatPack.....................