i purchased a unknown chassis with a chaparral 340 motor. i can find no markings on the chassis to identify the manufacturer and find out what the rear end. the bell housing has the number 815015 on it and the brake is a bendix 3203010. the car has an orange county autocross sticker on it from 1987. the bendix site requires me to have a manufacturer of the vehicle and i cant get any further in my search. the drums are open to the inside and quite deep, it has 12 inch rims, and i am not sure what other information may help in this mystery. it is running and ready to but i need rear brake shoes....can anyone help?