Flexplate orientation/Transmission to engine mounting?
Interesting I got mine off of a B300. Also one set is from a 318 definitely one is shorter in length though. Can't remember which came off of what, I think the ones painted blue were from the 318.
They are also used on the B200 and B300 Vans, not sure on the B100's. I have them on my B300 with a 70 340 attached and a short filter fit with the brackets on. A longer filter will hit the frame.