The size of P.T.O Shaft & Driverline Componts BP2 is 23.8*61.3mm.It is a Universal replacement PTO shaft for compact tractors perfect,  replacing broken shafts on tillers.There are some parameters as follows: 1)Both ends are 6 spline 13/8'; 2)fits standard 540pto out put shaft.27'collapsed in legth or as your request;3)shaft is telescopic.

There is the structure drawing as follows:

1.outer yoke   2.cross journal set   3.circlip    4.grease nipple   5.outer tube yoke  6.spring dowel  for outer tube  7.outer tube     8.inner tube  9.spring dowel for inner tube  10.inner yoke   11. push pin set 1.3/8