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Yes.  There are two different form factors: 1) in main cluster (about 3
inch diameter), 2) in accessory cluster (2 inch diameter).  Signal comes
from ignition coil.  Can't remember which terminal.  Check schematic in
Haynes book(s).  The petrol powered 240 usually is pre-wired for a
tachometer.  Should be red/white wire with female spade connector
somewhere in dash area.  If you have a diesel powered 240, the signal
for the tachometer is derived from the alternator.  The diesel's
tachometer calibration is different and cannot be used in a petrol
powered car.

What's a TAC?