Looking for a few things...
I have good news and bad news for you. The good news is that your stock PCM will work fine. The bad news is that you must have a 1997 gauge cluster in order for the tach to work, among other things. You will have to find a plastic pin connector and reland thewires/connectors inside of the new connector housing. I have the GM part number on my writeup.
The odometer can be reprogrammed by an electronics shop. I used a place in Houston called "Falcon Electronics," but they closed their Houston location down. I believe they have a place in Dallas. Bring it your old cluster and they can set it, as well as checking to make sure your gauge needles are set correctly.
Once again, a 1997 and only a 1997 cluster is what you need. You can install an LS1 cluster, but with all of the SES/ABS/CheckGauges lights your car is only going to look right during Christmas
.Ryan
I didn't want to make it sound like a sales pitch, but I have a 97 cluster from parting out my car. If you can't easily find one, I'll would sell it to you for 75 bucks. I paid $100 when I bought it.
Ryan
97+ Automatic Center Console
97+ T-Top A-pillar covers
and the ever so elusive 97 Z28 Cluster
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