Non-Rallye to Rallye Cluster?

[Ricks72Chlgr440]

I have a 72 Challenger with non-rallye cluster and am considering upgrading to the Dakota Digital cluster but going with a rallye. Besides the obvious differences in wiring, what would the change entail?

 

[tonysrt]

Nothing to the metal frame of the dash. I did that to a 71 Cuda, non rally, to a 72 Challenger Rally.

 

[EW1BH27]

I did a Standard OEM dash to Rallye OEM dash conversion on a 1970 Barracuda and had to change the oil pressure gauge too. I don't know if that's required with A Dakota Digital cluster.