Thanks for the compliments. John it works off of a electirc motor. The truck is a 1978 Chevrolet Titan 90 SS. The SS stands for Special Series. In 1978 the SS version was the first model to use the larger grille. Standard 78 model trucks still used the smaller grille. In 1979, the larger grille was standard on all trucks. It has a 8V92T Detroit engine, with a Allison automatic transmission. It was originally owned by Taylor & Messick John Deere in Harrington, Del. They had four of these Chevy Titan Tractors in their fleet, all with automatics in them. My truck only has 113k original miles on it.
Spanky Hardy Collector Of Fine Old G.M. COE Trucks & Antique Holmes Wreckers