Hi Rich,
yes the 3 clocks will go straight in, providing you get the metal holding
chassis with the clocks,
and you will find the rev counter wires are already there
(2 wires) if I recall  ,,, one has a normal flat push on connector and the
other has a tube type or bullet type
and that's it ,,
Fitzy

Hi

I replaced the 2 clock in our open classic for the 3 clock one.  Went
straight in no probs.  The open classics are 91/92 so if yours is a similar
age i would say yes.

Gary