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JCSinPITTS,PA 
Silver Level
Joined: 14 Sep 2009
Points: 232
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 Topic: AC - B PTO shaft size
Posted: 10 May 2018 at 8:58am |
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any opinions about welding the larger PTO sleeve on my smaller shaft? I tried the thin slip-on sleeve but the holes didnt align correctly and the bolt i used wasnt very thick so the brush hog shaft pulled the sleeve off and whipped around and busted the u-joint. i bought the extended sleeve that fits over the smaller PTO shaft and then allows the larger brush hog to fit. once again the holes dont align so I wondered if I could just weld the coupler to the smaller PTO shaft since I dont intend to ever remove it. I lso understand i can get the larger shaft installed in my housing.
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Leon n/c AR.
Bronze Level
Joined: 19 Mar 2013
Location: Heber Springs A
Points: 175
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Posted: 10 May 2018 at 9:09am |
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If you have a B you need an overrunning clutch. You can get them with the small spline size on the tractor side and the larger sixe fir the driveshaft end- problem solved!
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CAL(KS)
Orange Level
Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3793
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Posted: 10 May 2018 at 9:15am |
ill second what leon says except depending on your mower and driveline you may have to add the SAE hitch as the pto will be too long with the added length of the overrunning coupler. I have one and ran into that issue.
I believe you need the rear plate/carrier off a CA to run the bigger shaft as its different than the early b/c because of the bearing. But then running an overrunning coupler still extends the pto.
Edited by CAL(KS) - 10 May 2018 at 9:19am
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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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CrestonM
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Joined: 08 Sep 2014
Location: Oklahoma
Points: 8448
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Posted: 10 May 2018 at 9:58am |
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Yep, ORC is the way to go. I use one on both of my tractors with transmission-driven PTO, and they are life savers.
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Dakota Dave
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Joined: 12 Sep 2009
Location: ND
Points: 3965
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Posted: 10 May 2018 at 6:01pm |
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You know you can get the 11/8th in yoke for the end of the pto shaft.i still have one hanging in the barn of a real one rotary plow
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Ted in NE-OH
Orange Level
Joined: 12 Nov 2009
Location: Austinburg OH
Points: 1703
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Posted: 10 May 2018 at 7:57pm |
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The laster B's had 1-3/8 PTO shafts, maybe you could find one in a salvage yard or order new. You will still need ORC
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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914
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Bill Long
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Joined: 12 Sep 2009
Location: Bel Air, MD
Points: 4556
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Posted: 11 May 2018 at 12:14pm |
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We tried the sleeve enlargers a lot. Depended on the load. If it was a heavy load - rotary mower, baler - the sleeve would split. If that was the case we always put on a new PTO with the 1 3/8" PTO. Course that was in the 40's and 50's.
Check on e-bay. I have usually found one there.
I fully agree with the overrunning clutch - especially with a rotary mower or other heavy pto implement. Otherwise they will "push" you through a fence.
Good Luck!
Bill Long
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22822
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Posted: 12 May 2018 at 10:21am |
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I used an adapter for years on the 8N Ferd and never had a problem, except the little bolt got beat up pretty bad after years of bush hoggin.
I would either get a yoke for the mower that fits the tractor, or get a new style PTO shaft for the tractor if I was doing it on a B. AND make sure you check the length of PTO shaft when adding an overunning clutch. Make sure it will collapse far enough with the added length of the adapter.
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Bill Long
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Joined: 12 Sep 2009
Location: Bel Air, MD
Points: 4556
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Posted: 12 May 2018 at 11:16am |
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I just got off e-bay and found a B-C PTO for sale - Allis Chalmers B belt pulley PTO search. Looks like it has a 1 3/8 shaft on it. However, I did not take the time to confirm it. You could call the seller to confirm. If this is a 1 3/8" it would definitely be the best way.
Looks like somewhere around $ 168 plus shipping if interested.
Good Luck!
Bill Long
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