This set offers a complete suspension set to turn a Hotchiss H39 kit into the earlier Hotchkiss H35. It includes the H35 style bogies and rubber rimmed road-wheels. New sprockets and idlers are included to replace the poor offerings provided in all plastic kits. Although this set is designed with the Bronco H39 kit in mind, it may also be use with the Heller or Trumpeter kits. In their kits Heller includes part to build a H35, but the Bronco kit does not. In additional to good bogies, the engine deck and muffler are the most obvious parts needed for this conversion. When using the Bronco kit we recommend using the Brach back-date set in combination with our set to build a good quality H35. When using the Trumpeter kits, spare parts from a Heller kit are probably the best option to get the final items needed for this conversion.