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Power Shift Transmission 8070
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johnny s brooks View Drop Down
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Joined: 15 Dec 2013
Location: Missouri
Points: 26 		Post Options Post Options   Thanks (0) Thanks(0)   Quote johnny s brooks Quote  Post ReplyReply Direct Link To This Post Topic: Power Shift Transmission 8070
    Posted: 11 Mar 2021 at 3:52pm
Does anyone know if the power shift valve body assembly from an 8070 will bolt up to the transmission housing of a 7045?  The reason I would like to change the valve body is that the 8000 series tractors have an oil seal where the lever assembly comes out while the 7000 series tractors have an internal o-ring that is prone to wear and leak (like a major leak).
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22083 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 2021 at 7:16pm
Bolts right on.
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 2021 at 8:18pm
One reason the old style leaks is because oring gets cut on assembly . If you go to new style , peen around seal to keep it from coming out.           MACK
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johnny s brooks View Drop Down
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Joined: 15 Dec 2013
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Points: 26 		Post Options Post Options   Thanks (0) Thanks(0)   Quote johnny s brooks Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 2021 at 6:38am
Thanks.  I'll check on prices at the salvage yards.  If I can stand the cost, I'll make the change.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22083 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 2021 at 7:14am
I used to add a second oring groove to the old shift shafts.
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johnny s brooks View Drop Down
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Joined: 15 Dec 2013
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Points: 26 		Post Options Post Options   Thanks (0) Thanks(0)   Quote johnny s brooks Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2021 at 2:39pm
Thanks, Dr Allis.  Was this a permanent fix or a stop-gap measure?
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DrAllis View Drop Down
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Points: 22083 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2021 at 6:00pm
Pretty permanent. Better than one for sure. Even an 8000 needed a seal once in a while.
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MACK View Drop Down
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Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2021 at 8:53pm
To keep from cutting oring, slide shaft all the way through , install oring with grease, then pull back into place.             MACK
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tbran View Drop Down
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Joined: 14 Sep 2009
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Points: 3539 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tbran Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2021 at 9:04pm
the cab mount holes on the ps housing are different - the tool is different on the two series - have to address that issue.. we just did one. 
When told "it's not the money,it's the principle", remember, it's always the money..
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johnny s brooks View Drop Down
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Joined: 15 Dec 2013
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Points: 26 		Post Options Post Options   Thanks (0) Thanks(0)   Quote johnny s brooks Quote  Post ReplyReply Direct Link To This Post Posted: 16 Mar 2021 at 6:25am
Thanks to everyone.  Appreciate the expertise and help.
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johnny s brooks View Drop Down
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Points: 26 		Post Options Post Options   Thanks (0) Thanks(0)   Quote johnny s brooks Quote  Post ReplyReply Direct Link To This Post Posted: 16 Mar 2021 at 6:26am
Thanks to everyone.  Appreciate the expertise and help.
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