Triumph Repair: propshaft, spitfire mk3, straight axle

Question
QUESTION: 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 mounted. I think that there are only 2 possible positions for the rollers into the "V": - - - or / / /. Can you help me. I have a picture with this 2 possibles solutions. Thank you

ANSWER: Sorry Alfred, I have no clue what you are talking about. There are no rollers in "V" groves in the driveshaft (if that is what you are talking about) of any Spitfire. This program has a place to include a picture so you should send the picture.
Howard

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propshaft   QUESTION: Howard,
I enclose the picture. Sorry for my English.
Alfred


ANSWER: Alfred, your English is ok. But I still Don't know what that is. Where exactly does that fit? I have done a lot of work on Spitfires and I don't recognize that.
Howard

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rollers or short cylin   QUESTION:
Hi Howard,
I do not know the exact name in English. The picture is the propshaft or driveshaft on the side near to overdrive. Is possible that the name of this part will be the sliding joint or the slide spline. It is long and goes until to differential. It goes into the short tube that it has other 4 cuts in form of "V" and it permits that the propshaft will be more or less long according to suspension movements.

Answer
OK, I see now. You have disassembled the driveshaft. All you need to do to see how to put it back the way it was is to clean all the parts and you will see ware patterns where the rollers were positioned. Then grease all the parts and put it back together. That sliding joint does not move once in the car like a car with a straight axle. The differential is mounted and does not move so the only reason they put a slip joint in the driveshaft is because the small amount of movement of the engine/transmission mounts move and that would put a strain on the "U" joints and pinion of the differential. Why did you take the driveshaft apart?
Howard