As we know, earlier Sevens used the Ford Type 9 gearbox, not from a Sierra but from the 2.8 & 3 litre Capri, because, I believe, it had slightly better ratios and bigger bearings, but can anyone tell me if there are any identifying features on the outside of the box to quickly tell which is which? Was the input shaft slightly longer, necessitating the use of the ali. spacer or am I wrong on this? Many thanks in advance, Paul.