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ZF trans question

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Old Jan 29, 2020 | 07:20 PM
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jjriley97's Avatar
jjriley97
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ZF trans question

I currently have a ZF s-42 transmission from a 95 f250 in my 65f100, Dad built it that way probably from what he had on hand. It works great behind my 300, but the seal behind the yoke is leaking. I dropped the driveshaft and see the nut in the center of the yoke, but I do not have a socket to fit. My question is what size is it? I'm thinking 1 1/2 inch, but it will require a thin wall specialty socket that I will likely have to order and don't want to do that repeatedly. Has anybody changed thiers and if so, my second question is what seal did you get to replace it? Thanks in advance for the assistance.
 
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Old Jan 30, 2020 | 05:03 AM
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EPNCSU2006
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Off the top of my head, I think it's 36mm. I sourced an OE seal when I rebuilt the transmission. ZF number 0734319609 for 4x2, Ford number E7TZ 7052 D
 
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Old Jan 30, 2020 | 07:12 AM
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jjriley97
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Thank you Eric. I found the seal and have it on the way. Were you able to get a regular socket on there or did you have to use a special one? The inside of the yoke slopes inward slightly keeping the 1 7/16 I tried (which looked close and is the equivalent of a 36) from even getting to the nut so I couldn't verify it was the right size.
 
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Old Jan 31, 2020 | 04:30 AM
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EPNCSU2006
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I remember using a standard socket. I think an impact socket would be too thick to fit.
 
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