[submariner409]

I have 2 new cassettes on the shelf, one gray, one black. Except for different part numbers they are identical, as are the ICM modules in each.

Why GM made the front cam cover/cassette gray and the rear cam cover/cassette black is beyond me..............

If you want to keep the "look", stick with black. Me.......take anything the junkyard has in the same year/engine (VIN 9 or VIN Y). Yours is VIN 9 - the 8th character in the VIN.