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c clutch 8 1/2" or 9"
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HudCo View Drop Down
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3941 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Topic: c clutch 8 1/2" or 9"
    Posted: 25 May 2022 at 9:27pm
the clutch is on its way out on my i wanted to order a clutch and have it here before i took it apart,  is there  to tell if it is 8 1/2"  or 9" without splitting it ?
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Rick View Drop Down
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Joined: 11 Sep 2009
Location: Jonesburg,Mo.
Points: 3695 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rick Quote  Post ReplyReply Direct Link To This Post Posted: 26 May 2022 at 4:28am
The "C" Allis should have the 8 1/2" clutch unit in it...I've never saw anything else in them besides that unit...I think only the early "B's" had the 9" unit in them...
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5156 		Post Options Post Options   Thanks (1) Thanks(1)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 26 May 2022 at 6:18am
If it has electric start, it MUST have the 8-1/2" clutch. Only crankstart tractors can fit the 9" clutch into the bellhousing with the size of the flywheel. This applies to B,C & CA tractors. Crankstart tractors can possibly have the 8-1/2" either by just useing the 9" pressure plate or redrill the flywheel for the smaller pressure plate. I've seen a lot of Crankstart tractors with a 9" flywheel and pressure plate with an 8-1/2" clutch disc. 

Edited by PaulB - 26 May 2022 at 10:16am
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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HudCo View Drop Down
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3941 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 26 May 2022 at 9:22am
thanks you guys,  i will go ahead and order an 8 1/2"  this time of year its hard to get my own stuff close to the shop for very long
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Rick View Drop Down
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Joined: 11 Sep 2009
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Points: 3695 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rick Quote  Post ReplyReply Direct Link To This Post Posted: 26 May 2022 at 12:39pm
At the end, all of the B/C/CA's had the 8 1/2" clutch unit in them...yep, all of the crank start were 9" on the B's for sure
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