i don't like the way the gauges are in my 1984 firebird, so i am thinking about swapping them with some gauges from an 89. I only have 2 main guages, The Speedometer(which goes to 85) and the fuel guage. No Tach, no temp, no oil no nuthin. I was wondering how much work would it take to switch all of these guages and what wiring would need to be done. Please email me with answers THanx Lightn3883@yahoo.com