Starting out with local, small sled pulling events, Jesse Gillespie of Pro Tech Diesel quickly elevated his game from the 2.6 class to 3.0 and now this 3.6 smoothbore charger 6.2L Cummins engine, which cranks out nearly 1,700 horsepower! Find out what went into making this sled pulling beast. Diesel of the Week is sponsored by AMSOIL.