Working on switching a CCU from 14A to a 46A. I do not have the numbers from the CCU. I do know it is a live power model. My question is 2 part. Is the drive shaft the same length on both tractors? And how does the shaft come out on the drive end? I have the yolk and cover off. There is a splined shaft coming out of the idler gear that drives the hydraulic? pump. There is a snap ring that holds the gear on the shaft but the shaft is solid. Or is that shaft on all tractors covered? 

That would be a #29 CCU. Drive shaft yokes are the same but the drive shafts are different with different part numbers. Can't tell you if they interchange but mite. PTO shaft/yoke goes to the male splined shaft, normally under a cover. Pump drive gear is female splined.

Thank you much. I figured you would know.

Old Magnet, would you have access to the part numbers for the mounting studs in the rear case?

This should cover it....
 

I see the mounting gasket but I do not see the studs listed for mounting. Also how would a person find the actual length of the driveshaft? I roughly measured with a tape and the 46A Is 5 1/2" longer from the mounting flange at the front drive to the rear of the bevel case where the CCU mounts. I would like to have the driveshaft built and ready when the CCU is ready to be out on.

Drive shaft is normally measured from center to center of the shaft u-joint sockets for the shaft with consideration for how it is mounted at each end to get an overall length. I have no information on what the lengths are.
Mounting studs for the adapter are included in the quantity of 10 under part # L-797
   

2- 3S2113 stud, 2- 7H7539 nut, 2- 3B4520 lockwasher, 10- 8H6635 stud, 10- 6B6683 nut, 10- 3B4510 lockwasher, 1- 2B7558 cork

Thanks much you two. That helps a bunch.

Here's a better picture version.....