73 dart sport factory fuel and temp gauges not working

To get to the limiter im guessing I will need to pull the cluster out or can I just drop the column and get to it while it's in the car?
To pull the OEM and plug another in from underneath the dash can/has been done but... it aint easy or simple as it sounds. Why?... the middle leg of the 3 is the 12 volt contact. There's another male spade poked in there with the limiters spade. So 2 males in one female ( keep your dirty mind to yourself ). That extra male terminal is on a dangly piece of wire coming from a noise suppression capasitor. Although some yahoos, and even some vendors website info might state ,"you don't need that anyway",... to omit/delete it can result in a loose connection. Limiter operation could come and go with bumps in the road. So... try to get it back together correctly from underneath if you want.
A better plan is follow the instructions found in factory service manual to R&R the panel. Clean all contacts, bench test everything, 6 to 8 new light bulbs, fix it all at once and be done with it.