ENGINE & DRIVE TRAIN The 15SH comes standard with a 3-cylinder Cummins diesel engine yielding 100 horsepower @ 2200 RPM, with a maximum torque of 250lb-ft @1500 RPM. A 3-speed automatic transmission with joystick controls. Rear wheel drive is standard. John Deere 1080 series differential. CHAIN AND SPROCKET DRIVE Connects driving head with drive wheel. STEERING & BRAKES Four wheel power hydraulic steering is standard. Four wheel power disc brakes. SPRING SUSPENSION Independent suspension system with heavy duty steel coil springs mounted in all four corners. Springs are protected against damage from dirt and moisture. External shock absorbers provide a smooth, controlled ride.