I have a Spitfire mk3 from 1968. I have dismounted the propshaft and in the side of overdrive the propshaft has 4 cuts in form of "V" with rollers (about 4,8 mm of diameter and 4,80 mm long). The rollers fall on the ground and now I do not know how its have to be mounted. I think that there are only 2 possible positions for the rollers into the "V": - - - or / / /. Please help me.