Benson, you have a factory Model B cap there. You could put the same on the rear, with out an oil grove hooked to it, or you would have a big oil adundance out of the rear main, so the cops could track you after your next stick up!! but I think the rear thrust oil well would be better, divided in 1/3's. Just don't let the well extend past the out side rim of the thrust, or you will have defeated your purpose. This way you will always have a oil wipe on the thrust. If I get pictures of some we have done that way, I will post them, or put them in my picture file, might be awile. Thanks Benson, Herm.