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Ford 9N, 2N & 8N Discussion Forum

Re: 1 1/8'''''''''''''''' vs 1 3/8"

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Author  [Modern View]

06-25-2020 04:38:19

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Never heard of or seen such an animal. As Shaun said, just the output size of the shaft is different between the two.

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In fact, if you use something like an 1-1/8 belt pulley, you need the 1-1/8 PTO

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Tim PloughNman Daley

06-26-2020 02:47:19

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 Re: 1 1/8'''''''''''''''' vs 1 3/8 in reply to jimtrs, 06-25-2020 04:38:19  
Yep, I forgot to add that important piece of info in my earlier post. The 1-3/8" splined PTO shaft is only the output end as Jim said. You don't buy a whole new pump, they don't make the beast, and thus not needed. The NAA introduced the 1-3/8" PTO shaft as OEM standard issue and the size still used today. The shaft is a tad longer than the original 1-1/8" shaft and thus the PTO cap will hit. That is where the square cap comes into play. Like I said, the 1-1/8 shaft is no longer made. DEARBORN made an adaptor too -see PIC. Also stated, get a sleeve or ORC adaptor if you need to run a mower, combine, or spreader. How may actually use their belt pulley? A Cordwood saw maybe? If it ain't broke??? I'd move on to better things to send time and money on like PM. Don't sweat he petty stuff and don't pet the sweaty stuff... ; > )


Tim Daley(MI)

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