Yes, all EB gauge clusters were the same orientation and operation. The usual things changed such as "unleaded only" labeling, the red stripe around part of the speedometer range (vs some having no stripe) and probably a few other things.
Supposedly there was a variation in the ohm range on some year fuel gauges, but the general range stayed the same for that vintage at 73-10 (I think it's supposed to be 73.5-9.2 or something strange like that, but most just call it 73-10) where 73 is low/empty and 10 is high/full.
Welcome to classicbroncos.com too by the way!
You should check out Viperwolf1's thread "1972/73 owners, mind your P's and Q's" (
http://classicbroncos.com/forums/showthread.php?t=221155) where we're tracking the changes during the transition between the '72 and '73 model years. Judging by your username, I'd say yours qualifies!
Add your VIN and info when you can.
Thanks!
Paul