Tach?

Did the Caprices ever come with tach clusters? My Grandma has a 91 station wagon and it seems to be idling high. Wondering if the throttle body is sticking a little or something. Anywho I was wondering if the Caprice ever came with one or if an Olds Custom Cruiser tach cluster would swap right in. If anyone knows or has done this, please let me know.
Thanks,
Collin

The 9C1's came with a tach and digital speedo.... but you're looking at a huge p.i.t.a. to swap it in.

You'd be better off to hook up an aftermarket tach and be done with it.

Okay thanks.