Auto World 375 HO Scale Off Road Thunderjet X Traction 1977 Chevy Blazer Steam Loco 4-8-8-4 Great choice for young drivers

Great choice for young drivers or running in the muck without ruining an expensive motor

The nickname "Jimmy" was derived because the majority of the total production was done by the GMC firm

Modeler-applied Milwaukee or Miner-style Brakewheels

Ultra high-temperature Neodymium magnets

Removable wood chip load

Auto World 375 HO Scale Off Road Thunderjet X Traction 1977 Chevy Blazer Steam Loco 4-8-8-4 Great choice for young driversAuto World 375 HO Scale Off Road Thunderjet X Traction 1977 Chevy Blazer The ThunderJet Ultra G chassis is Auto World's adaptation of the classic "pancake" design, originally developed by Aurora in the early days of electric slot racing. Auto World expanded the design by adding a Neodymium magnet for better control. Still immensely popular today, entire slot racing events are created around this chassis. ThunderJets Ultra G are retro slot racing at