hyper shifting
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Joined: Mar 2015
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From: Penndel, PA
If it's part of the transmission, it's the tail-shaft.
If it's the part that slides into the back of the transmission, it's called a slip yoke. After the slip yoke are the U-joints which hold the driveshaft to the slip yoke.
If it's the part that slides into the back of the transmission, it's called a slip yoke. After the slip yoke are the U-joints which hold the driveshaft to the slip yoke.
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Joined: Mar 2015
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From: Penndel, PA
Changes in shifting pattern wouldn't be due to the tail shaft. And no, I have no idea what you mean by hyper shifting. Sounds like you need someone with a little more experience to have a look. You probably don't want to open up a transmission unless you really know what you're doing
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does my 1991 f150 xl have a place to plug in to get codes from if it does where is it located at
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Senior User
Joined: Mar 2015
Posts: 249
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From: Penndel, PA
Does it have a check engine light? It doesn't have ODBII. Maybe ODBI. Off top of my head, I'd be looking at fluid level in the trans. I don't think you have a vehicle speed sensor but I'm not up to speed on your model specifically. Sounds like trans issues though
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They call that shift stacking or stacked shifts when it goes 1-2-3 right after each other and your in 3rd at 20m/h (for example) and the thing is gutless then. Need to know more about your truck like what tranny you have to help further
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