71' Rally Tach Cluster in a 73' Rally...Help me

[BMOTOXSTAR]

Nacho helped me with this a year ago &  I can't find the post.
What do you need to do to put a 71' Charger Rally Tach Dash in a 73' Rally Charger that came with a non -clock Rally dash.
Is it hard ta' swap out?
Thanks

[Nacho-RT74]

housings are different between non clocn and clock clusters.

IF you want to make the job, will need to find the small double meter gas/oil gage, and the right tem and ammeter gauges to the other small location.

Then also make the cut out on housing and open the holes to gauges studs ( housing have dimples for it )

THEN will need to find the clock or tach.

HONESTLY to find the small gauges and make the cut job on housing, better to find the righ unit. You can get the cluster you want and sell the one you have and will save headaches and money. I have seen clusters with clocks all the time around.

wiring is the same.

Just the wire what feeds the gauges from voltage limiter could it be diff, but you already have the longer one on your car, and normally all clusters being sold, have that wire attached.