[fox46]

The drawing is missing the rear guide pin on the output shaft that centers in the 3rd stage carrier plate. Is it machined integral with the output shaft, or a pin pressed into the shaft.

I am not sure I follow you on this- our P60s didn't come with any kind of a guide pin. I think I can imagine what you are talking about though- is it a pin that locates the 3rd carrier to the output shaft? I noticed there is indeed a hole through the center of the carriers but there is no bore machined in the output shaft.

Are you using extended inner race bearings where the spacer is located?

No, they are just regular bearings. I suppose you could put a spacer between the races but we are just leaving it up to the spacer on the output shaft to space them.

Is there any problem with the spacer moving off center when you grease and reassemble?

The spacer can sometimes slide out of line but all you have to do is use a screwdriver to poke it back into position from the other side before sliding the shaft on. The spacer is machined with chamfers so that it is somewhat self-centering and will slide onto the shaft as long as you get it close. The fit between the shaft and spacer does not have to be tight as it just keeps the bearings from wandering along the shaft.

I like the hardening- it will probably solve some of the issues but I would be very leery about the possibility of making the parts brittle- especially the output shaft interface. let us know how it works out!