Looks like we are both right!
re-looking at etka early 1.8 carbed MK2 2WD and syncro were indeed 90mm, chassis break was up to 1G-K-990 000 which is around late 89 to 90. my mistake was just checking 1990 MK2 in etka
carby = carburettor equipped MK2 if you want to be captain pedantic
edit: well, technically we were both wrong and Wayne was right
