Rally dash wiring

[wigger]

I know this has been talked about before, I'm installing a 72 rally dash in my 70 standard dash cuda, what wires need to be changed and which oil pressure sending unit do I need. Thanks in advance

[Chryco Psycho]

this is the type of sender you need https://www.ebay.com/itm/Mopar-Oil-Pressure-Sending-Unit-440-340-318-OEM-Plymouth-Dodge-Charger-Cuda-GTX/323532868525?hash=item4b540fcbad:g:lNMAAOSwAURaobf-:rk:6:pf:1
You will need to add a wire for the Tach as you have nothing there now .
Some of the connections are different & the wires are too short in xome cases also & need to be extended , it is relatively easy to do the easy though 

[Jay Bee]

You need a connector for the oil pressure gauge. Either cut the bulb socket off and add it there or splice a wire .

[73chalngr]

There is a conversion kit for sale on eBay I believe it's complete with instructions I think it was like $55

[Jay Bee]

There is a conversion kit for sale on eBay I believe it's complete with instructions I think it was like $55

Here's the link to it.
https://www.ebay.com/itm/1970-74-Mopar-E-body-Non-Rallye-Rallye-Dash-Conversion-Harness-Challenger-/162766275415?vxp=mtr&hash=item25e5a04357