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Isuzu 6bd1 dying under load
I have a 1987 GMC 5500 Forward box truck. It has the Isuzu 6BD1 diesel (non turbo) with a 5 speed manual and has clocked about 235,000 miles. I have owned the truck for about 25 years and in those years it has been driven very little, probably less than 1000 miles per year on the average...- Timberwolf400
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