Just doing small projects on the 37 over the winter,replaced the master cylinder and battery plus rebuilt a carter YF carb to eventually put on it. Found the rattle in the front suspension and deciding on what to do about a heater,I have a correct 37 heater but not really wanting to smell kerosene fumes for a month while restoring it so I am thinking about buying a heater that has been restored so I can just install it and go.