73smallblock Well-Known Member Joined Nov 4, 2015 Messages 371 Reaction score 394 Location PA Nov 14, 2020 #1 Looking up some 727 transmission's by their number on the pan rail. I noticed that some have 2-bc after them, some have 4-bc, some have nothing. So what it all about?
Looking up some 727 transmission's by their number on the pan rail. I noticed that some have 2-bc after them, some have 4-bc, some have nothing. So what it all about?