1957 GMC 9700 Diesel Build: From Fire Truck to 500HP Daily Driver A 1957 GMC 9700 Gets New Life Bob Ward has modified vehicles just about all his life. The 46-year-old millwright from Ontario, Canada, started building […] WENDY WILSON December 20, 2025 Diesel Engines Diesel Tech / How-To Diesel Trucks FEATURES GMC
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