FSC Forum - View Single Post - 1995 to 1998/99/00 Instrument Cluster Information...

88GMCtruck · 12-11-2007, 05:05 PM

If you have a 88-90 with moonie gauges check the tech articles, you can upgrade to 92-94 style with tach fairly easily. 91 is the only special year, they offered the new style tach cluster but it used the old plugs style and is a no wiring swap for 88-91trucks with moonies.

I originally installed the 85MPH gauges in my 88 from a 94, then installed 454SS 110 MPH guages from a 93. If you want a speedo higher than 85MPH in your 88-94 install gauges from a 454SS. On the 454SS cluster the tach goes to 6k and speedometer to 110MPH, and they have an additional dummy light that says "traction active" (although this isn't wired in standard trucks).

The only thing else I can say about the SS cluster is good luck finding them. The Tach style ran 91-93 (91 being the old style plug). Only 16k trucks produced and 91-93 was only about 3k of that. I found my set (brand new!) from a 93 for $299 which was a steal IMO.

Another cluster to add to the list is 95 Chevy Diesel cluster. It has the 5k tach, 100mph speedo and a host of other dummy lights including "service throttle soon" and "water in fuel". 95 is also the only year of the diesels that says "glow plugs" instead of the 96+ "wait to start".

12-11-2007, 05:05 PM	#53
88GMCtruck 02GMCtruck Status: Offline Join Date: Mar 2004 Member ID: 13211 Pics: My Gallery Location: Washington Age: 22 Posts: 305	Re: 1995 to 1998/99/00 Instrument Cluster Information... If you have a 88-90 with moonie gauges check the tech articles, you can upgrade to 92-94 style with tach fairly easily. 91 is the only special year, they offered the new style tach cluster but it used the old plugs style and is a no wiring swap for 88-91trucks with moonies. I originally installed the 85MPH gauges in my 88 from a 94, then installed 454SS 110 MPH guages from a 93. If you want a speedo higher than 85MPH in your 88-94 install gauges from a 454SS. On the 454SS cluster the tach goes to 6k and speedometer to 110MPH, and they have an additional dummy light that says "traction active" (although this isn't wired in standard trucks). The only thing else I can say about the SS cluster is good luck finding them. The Tach style ran 91-93 (91 being the old style plug). Only 16k trucks produced and 91-93 was only about 3k of that. I found my set (brand new!) from a 93 for $299 which was a steal IMO. Another cluster to add to the list is 95 Chevy Diesel cluster. It has the 5k tach, 100mph speedo and a host of other dummy lights including "service throttle soon" and "water in fuel". 95 is also the only year of the diesels that says "glow plugs" instead of the 96+ "wait to start". 88 GMC K1500, RCSS 4x4 5.7L, 168k. My SAS Build - 9" D44 on 35's 02 GMC K1500, RCSS 4x4 4.8L, 15k. Sierra HT package: One of 432 Trucks.