My original pivot shaft is severely worn on one end so I bought a used one. With the replacement (used) one on the bench it appeared to be bent on one end. The other end is relatively straight. Using a level and clamps I got the rough measurements as depicted on the second photo. 
Assuming this machine will see occasional light to medium duty ranch work, is 3/16”  an “acceptable” amount of bend. I have read numerous posts on this forum that touch on this subject but no specific details. Some recommendations from the threads I’ve read include:     -use as is     -turn 180 degrees and use 
 My current repairs include new idler shafts and bearings and new pivot shaft bearings. Any suggestions would be appreciated. Thanks,Chad

I would not use that bent shaft, anyway you turn it, it will wear the undercarriage uneven. I had a new shaft made on mine years back.

By the time the 'out' of that shaft gets to the idler the toe in or out will have been magnified, as such will create significant side wear on the rails, if enough may even encourage the track to want to depart its proper course, Yuck, I hate putting tracks back on or even seeing uneven wear patterns.

Wombat

Hey Chad
I have a couple laying around here , I know one is straight but has some wear. Its not to hard to build them up and turn them down by hand. I know you saw what I did and if you have a very limited welding skill its not hard. You're welcome to have the shaft that is worn. I have another one that is still in a tractor not sure of its condition. Neil's suggestions seem good. I had my welder friend straighten some really heavy metal and when you're set up for it not a big deal . Try straightening it if not you can weld up the one I have . Not sure on the shipping but have sent parts to a lot of places .

Thanks Neil.  I’ll investigate press possibilities this week.  Glad to hear your pivot shaft is coming back soon. 
Chad

Scott,
Thanks for your generous offer.  I will let you know how things progress. 
Chad

The first thing you notice when that shaft is worn or sprung is the inability of the tractor to run in a straight line, even on smooth level ground. You will get very tired of pulling on one of the side clutches every 20 yards to straighten it out, and with every pull you will wonder how much damage or wear you are putting on clutches and undercarriage. I say fix it correctly and get your track running centered around the sprocket again. You won't regret it.

Been there on my D2 5J.

Jack