I just bought a 4th gen gauge cluster with a pigtail to hook to my 90 iroc covertible. I need the proper pin out to hook up this 4th gen cluster from an 02 camaro. I know there is a few people running this cluster in a thirdgen dash.

 

3rd gen pinout for 90-92 camaros

http://www.austinthirdgen.org/mkport...ter_pinout.jpg
Indiv diagrams at the bottom
http://www.austinthirdgen.org/index.php?pid=19

Some guys prefer LT1 clusters because the gauges are analog
Camaro
http://shbox.com/1/95_z_cluster_pinout.jpg
Firebird
http://shbox.com/1/95_ta_cluster_pinout.jpg

LS1 cluster
http://www.ls1tech.com/forums/stereo...et-gauges.html

Class 2 Serial is teed into your ALDL serial line. You'll need a LS1 fuel level sender to have an operable fuel gauge. 98 LS1 clusters have an analog coolant temp gauge. I cant find the pinout for that on 'tech, but it should be a single dk grn wire not shown on the 99-02 pinout