I have a 1986 cutlass supream that i am puting a ralley gage cluster in from a 86 442. at on point i found a site that listed wich wires needed to be changed to make this work, some how i have lost it if anyone knows the site or the conversion i would greatly appreciate it. Matt

 

I believe there is something in the faq at 442.com. The service manual wiring section will help identify the configuations also.
I did this swap long ago and was pretty easy.

 

Go to OLDSGMAIL.COM you'll find what you need there. I have a couple of clusters for sale if your interested. Just E-mail me and let and let me know marcos82cutty@yahoo.com