The engine would be useable,but you would have to change the thermostat housing,as the truck one is different to a passenger car housing,the 4spd gearbox could be used in a passenger car,but you would have to have a 1927 LM series truck universal joint housing,and even then you would only gain a stump pulling 1st gear,top gear is still 1:1,the front axle assy complete with brakes would fit only a 1928 or 1929 passenger car,the rear brake bands & differential assy is larger and longer than a passenger car,the radiator will only fit either 1927 LM,early 1928 LO or 1928 LP series 1 ton trucks or 1927 passenger cars,the steering wheel will suit LM,LO,LP trucks or 1927 passenger cars.CAVEAT EMPTOR!