John Deere STX38 Specs, Price, Reviews, Transmission, Engine, Horsepower, History, Weight, Pictures The John Deere STX38 Black Deck replaced the original John Deere STX38 yellow-deck model in 1994. The John Deere STX38 black-deck model is considered to be an economy model with fewer features than the yellow-deck. John Deere STX38 Black Deck Lawn tractor is equipped with … [Read more...] about John Deere STX38 Black Deck Review, Price, Specs & Features