White-faced mechanical rev counter for 91-98 SS. Any model 600/750/900 should be OK. Only need the bezel, glass and casing ( in reasonable condition), so non-working unit is fine.
I have a complete dash and instruments.................approx 5000k on the clock...........but it will cost you!!!
Thanks Al - I'll hold out for the single item if you don't mind - I'm OK for speedo and dash anyway (got spare ones even)