thanks for all the tips, it should come in handy. my friend has made spoilers before out of fiberglass. Which I am uneducated as to how that works, so I will learn as we make it. So we should be able to build a mold fit for the car.

by 'rubber' My guess is he meens the soflt black ducktaily things?

Several people have used Subara WRX or EVO wings on the sedan.

If you can get some translations, there's some Japanese clubs/vendors in the Web links part of the menu that might have what you need. Maybe BProjects, as they raced a B310 coupe, & might be able to source one for you. They're probably still racing these cars in Japanese Historic racing, so that could be a start. Or if you're looking for a 'Wing' wing, maybe a local metal fabricator could make something out of steel or alumin(i)um. Also, check out whats available for some European cars, as I can remember people using rear spoilers intended for Golfs & Audi's on 1200's. As the cars are approximately the same size, so something could work for you.

A Datsun B310 will need a medium size rear wing.



Wings

Anyone know where to find rubber rear spoilers? And what size would fit this car? That would be awesome!