I can't find the pictures for this, can someone help me out?If you don't mind splicing wires, it's pretty easy.
See the Texas Charger 73 post with a pic I posted showing the backside of a dash with a non rallye harness and a rallye cluster.
. If you want to go for the correct look, be sure to get the Rallye dash with the indicator lights next to the headlight and wiper switch. '71-'72 did not have the indicator lights as '73 and '74 did.