1978 Firebird instrument cluster
 

:)npt sure if anyone posts or looks at post on here anymore, but here goes anyways. I'm looking to convert my stock standard gauges in my Firebird for the Rally gauges. My question is how far off are the connections for all the (idiot) lights and actual guages on the new one? There is an obvious difference between each. Is it possible to do without changing the whole wiring harness?

Thanx
Dave