HELP! Howard Rotavator pto shaft

   / HELP! Howard Rotavator pto shaft #1  
C

chasehalvy

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Joined
Mar 22, 2024
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Tractor
Case D33
I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.
 

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   / HELP! Howard Rotavator pto shaft #2  
chasehalvy said:
I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.
Click to expand...
WOW, this is from the 1960s. I was on another tractor forum and someone actually has the K91 out of the Howard 350 model.
Freebies

There was a Howard owners group when Yahoo groups existed. All of that valuable info is now long gone.

If you knew more of the PTO dimensions, RJ Link in Rockford can make you a new one. They make all kinds of Ag and off-road PTO splined shafts and gearboxes.

Manufacturing Capabilities – RJ Link International, Inc.

www.rjlink.com www.rjlink.com
 
   / HELP! Howard Rotavator pto shaft #3  
chasehalvy said:
I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.
Click to expand...
OK, do you know what thread size is on the gear box? Is it left or right threaded?

From the looks of things, A splined PTO shaft on one end and the threaded hole interface on the other will get you going once again.

1711221568640.png
 
   / HELP! Howard Rotavator pto shaft #4  
Ever-Power has products like this. Any of these workable?

Splined dimensions for PTO drive shafes

PTO Drive Shafts, You Can buy good quality PTO Drive Shafts - We are PTO Drive Shafts exporter & PTO Drive Shafts manufacturer from China market,Buffer inflatable packagingequipment manufacturer
www.ever-power.biz
1711221689974.png
 
   / HELP! Howard Rotavator pto shaft #5  
ah ha, found the 10-spline tooth configuration info,
1711222069222.png


So buying something like this, and have a shop cut a pocket in the back to tap the right threads would work!
(y)

The hole with tap thread should match the Howard then.

1711222632884.png
 
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   / HELP! Howard Rotavator pto shaft
  • Thread Starter
#6  
Bmaverick, thank you for the information. The threads are right handed. From some other research I've done, it sounds like it's more of an automotive application where you have a 10 spline yoke with a castle nut.
I'm starting to think I may have to go the route of getting something machined if I can't find the actual part. But if I go that route, I may just have them machine me an adapter to from the 10 spline to the typical 540 6 spline shaft now days. That way it's easier to find parts.
 
   / HELP! Howard Rotavator pto shaft #7  
chasehalvy said:
Bmaverick, thank you for the information. The threads are right handed. From some other research I've done, it sounds like it's more of an automotive application where you have a 10 spline yoke with a castle nut.
I'm starting to think I may have to go the route of getting something machined if I can't find the actual part. But if I go that route, I may just have them machine me an adapter to from the 10 spline to the typical 540 6 spline shaft now days. That way it's easier to find parts.
Click to expand...
I like your thinking.

I can find 10 spline to 6 spline shaft couplers on the web all over the place.
 
   / HELP! Howard Rotavator pto shaft #8  
chasehalvy said:
I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.
Click to expand...
Oh, I just found out Howard is a 50min drive from me in the USA.
1711229419474.png


Ouch, website shows 404 error.

1711229632162.png
 
   / HELP! Howard Rotavator pto shaft #9  
More digging on the WayBackMachine has this from 2018,

1711229759095.png


Howard became KongSkilde. Then acquired by CHH and placed into the New Holland Ag group.
 
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