Hi all, i am looking to replace my 53 plate 722.6 gearbox with a second hand unit from Ebay. There seem to be lots of variants eg 722.695, 722.618 etc. Does anyone know which one i need as there seems to be no continuity between the models. I was going for one in the same year class as mine. Am i correct in assuming that all 722.6 boxes will fit but the last two digits are updates and only concern if ordering parts for them.

thanks in anticipation.