How do they measure Sierra Rear Shafts?
There are obviously different length versions made, but even ones that appear the same length have subtle differences.
Take these two shafts, at first glance they appear very similar.
But one uses an both inner and outer split rings(bottom)and the other just an outer top.
Once assembled the c.v. joints would be 2.5mm closer together. Ok, that’s not huge and the ‘slack’ within the c.v. joint can more than cope, but it is still a difference.
Here is a shot of the opposite end of the two shafts (not a great shot) but top shaft is longer even though overall the shaft is fractionally shorter (believe me).
So when your buying, see if you can get a picture as well as a length.