1991 Metric Instrument Cluster USMC - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gmech · 10-29-2011, 07:39 PM

My 1991 4x4 1 ton crew cab instrument cluster gages and speedo are all metric. The truck is a (former) Marine truck. Once a Marine always a Marine!!Not exactly sure what it was used for. I know this because of the USMC inventory sticker on the dash and the data sticker on the core support. Also the truck had a 6.2 with a manual trans. The trans and transfer case were gone before I got it.
Ive got some questions

1- Can I replace the gages etc with U.S. Gages from another dash?
2- I dont see a speedo cable, Is this possibly electronic?
3- If so, would this help if I were to go with a Duramax/Allison trans combo?

10-29-2011, 07:39 PM	#1
gmech Registered User Join Date: Feb 2011 Location: Lake, Michigan Posts: 219	1991 Metric Instrument Cluster USMC My 1991 4x4 1 ton crew cab instrument cluster gages and speedo are all metric. The truck is a (former) Marine truck. Once a Marine always a Marine!!Not exactly sure what it was used for. I know this because of the USMC inventory sticker on the dash and the data sticker on the core support. Also the truck had a 6.2 with a manual trans. The trans and transfer case were gone before I got it. Ive got some questions 1- Can I replace the gages etc with U.S. Gages from another dash? 2- I dont see a speedo cable, Is this possibly electronic? 3- If so, would this help if I were to go with a Duramax/Allison trans combo?



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