This set will allow you to replace the entire front gearbox, tower, and related parts on the Tamiya FF01. This kit will work with the stock and official Tamiya FRP chassis. This was not designed to work with any other aftermarket parts at all. Testing has been done in FDM, SLS, and SLA. FDM prints must use the smallest layer height and ensure all pin and alignment features are cleaned out. SLA resin prints are fine for a shelfer but are not strong enough for operation. Tower shock mounts need to be printed with the cylinder perpendicular to the print bed.