1955 Mack Dump Truck B61. Mack 1955 B61 Thermodyne Dump Truck $8000 - Equipment Details - I purchased the Mack truck in 1991. - I have used it since that time to pull my case tractor and occasionally do chip seal jobs. - The truck has a working heated hot tank for asphalt emulsion. - The truck runs well. - My last job in 2015 I pulled the case tractor over Hwy 80 summit 7239 feet to Truckee Ca ...