Technical 5-speed gearbox from Uno in 127 mk2 - which driveshaft?

[Jarek]

Just like I wrote in my first post - I bought 127 mk2 900 ccm with gearbox swapped to 5-speed from Uno. One of the original driveshafts wont fit - it's too long.

All, do you know which (from which vehicle? - Uno etc) shaft should I look for to make this swap working?

Thanks in advance