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Best fix for bent PTO shaft

Posted on 9/19/22 at 9:55 am
Posted by DownSouthDave
Member since Jan 2013
7510 posts
Posted on 9/19/22 at 9:55 am
Castle nut came off the spline of my bush hog 2 weekends ago and I dropped my stump jumper/blades in the field. Picked up replacement parts to get it back on this weekend.

Got out to the farm a little late and didn't feel like fixing the bush hog. I decided I would hook up the the flail mower and do what I needed to do.

Being late and in a rush, I disconnected the 3pt from the bush hog but forgot to disconnect the pto. I pulled away from the bush hog with the drive side of the shaft still attached to tractor. I backed up to the flail mower and the pto shaft pushed in the dirt and bent.

Didn't seem to damage the tractor. I hooked up to the flail and worked the rest of the day.

But now I need to replace the drive side shaft of the bush hog pto. What's the best way to do it? Do I need a whole new shaft? Can I just replace the drive side? Can I just replace the bent shaft? Are there different grades or sizes I need to be aware of?

Thanks for the input, still new to tractors and never had to deal with pto shaft.
Posted by tigerinthebueche
Member since Oct 2010
37968 posts
Posted on 9/19/22 at 10:20 am to
you can get a new shaft at Tractor Supply. But its the whole shaft not one piece or the other.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
28542 posts
Posted on 9/19/22 at 12:11 pm to
I had to replace the rear wheel on my bush hog this weekend. While at the dealership, picking up the new wheel, they had 10 or more PTO drive shafts there for sale in the front of the store.

Tractor supply also has them, as was stated.

Not sure you can buy just part of one though.
Posted by deltaland
Member since Mar 2011
101983 posts
Posted on 9/19/22 at 12:18 pm to
quote:

Not sure you can buy just part of one though.


Depends on type of mower. If it just uses a basic 1000 spline drive shaft it’s easier to just buy a new one already put together. If it’s an expensive mower like a JD batwing that shaft can cost 2,000 dollars so better to get the part instead and knock the pins out and replace just the shaft piece and not the yokes

OP needs to know the diameter of the shaft on the mower gearbox
Posted by Bowstring1
Member since Sep 2016
253 posts
Posted on 9/19/22 at 1:18 pm to
You can replace just the male and our female part of the shaft if that is all that is bent. Usually a roll pin is all that holds part of the shaft onto the yolk. I have to change them several times a year. Less than $100 to repair
Posted by GoAwayImBaitn
On an island in the marsh
Member since Jul 2018
2923 posts
Posted on 9/20/22 at 5:51 am to
quote:

you can get a new shaft at Tractor Supply.


These are about $350, no joke. I got a Vevor branded pto shaft from Amazon. Made in China just like the ones at Tractor Supply. I paid $79 and it was here in 2 days or so. It's well made for the money and not a cheap POS, which I was bracing for
This post was edited on 9/20/22 at 5:52 am
Posted by Sloughdog
Member since Jan 2022
63 posts
Posted on 9/20/22 at 7:42 am to
If not kinked and if you can find someone with a hydraulic press it can be straightened
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