90-91 vs 92-96 Instrument Clusters - ZR-1 Net Registry Forums

Ccmano · 01-22-2019

Learned something new today. 90-91 instrument clusters are NOT interchangeable with 92-96 clusters. At least not the LCD module. Everything else worked fine.

The tach on my 90 cluster is way off, some of the lights are out and the oil pressure gauge is off. So I found a great deal on a newly rebuilt low mile 96 LT4 cluster. Did the swap today only to find out that the LCD display went wonky showing jibberish. My frist thought was the new cluster LCD was defective. I had always thought all years were interchangeable.

So I sent Brian Thompson at Batee.com an email with a photo of the new cluster jibberish. Much to my surprise and satisfaction I got immediate reply (that’s customer service). He informs me that the LCD’s are indeed NOT compatible. The “electrical protocol “ was changed between the two.

The good news is that I can swap the LCD modules (the old LCD is still excellent, although I may rebuild it anyway) and I’m good to go. The LDC modules are a simple plug in.
H

OLD Cluster

NEW Cluster

01-22-2019	#1
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	90-91 vs 92-96 Instrument Clusters Learned something new today. 90-91 instrument clusters are NOT interchangeable with 92-96 clusters. At least not the LCD module. Everything else worked fine. The tach on my 90 cluster is way off, some of the lights are out and the oil pressure gauge is off. So I found a great deal on a newly rebuilt low mile 96 LT4 cluster. Did the swap today only to find out that the LCD display went wonky showing jibberish. My frist thought was the new cluster LCD was defective. I had always thought all years were interchangeable. So I sent Brian Thompson at Batee.com an email with a photo of the new cluster jibberish. Much to my surprise and satisfaction I got immediate reply (that’s customer service). He informs me that the LCD’s are indeed NOT compatible. The “electrical protocol “ was changed between the two. The good news is that I can swap the LCD modules (the old LCD is still excellent, although I may rebuild it anyway) and I’m good to go. The LDC modules are a simple plug in. H OLD Cluster NEW Cluster Last edited by Ccmano; 12-20-2019 at 06:26 PM.