Quote Originally Posted by MidLifeCrisis View Post
As an EF enthusiast you should know there are differences between harnesses. More than likely its a 90-91 SiR cluster, which has different wiring than the 88-89s.

very true!

and its not a sir cluster i doubt you would find that here they are kinda pricey

if it has 4 screws in the gas and temp area its a 88-89 cluster

no screws like the one you posted fs geezy then its a 90-91 cluster

you cant mix and match them or they wont work.

2nd reason id take a look at the green film on the back of the cluster do you see any burnt connections or broken areas this will cause the rpm section of the cluster to not work. i found this out the hard way after buying a few from certain members. i just bit the bullet and bought one from marietta salvage