4l80e slip yoke
#1
4l80e slip yoke
I need a little help, from what I'm reading a th400 slip yoke will work in place of the bolt on 4l80e yoke. The driveline shop building my driveshaft has a th400 32 spline yoke that is counterbored with no splines in the beginning of yoke. I'm reading this is what I need. Just wanted to make sure and give them the go ahead to put that yoke on
#3
Oh okay so I still have to remove tail housing? I was thinking the counterbored one will work on either shaft. I was just hoping I could get an answer without doing that cause tranny is already installed in car and I won't be able to get to the car till Sunday to finish some work on it, but driveshaft would be ready tomorrow for me. Maybe I could tell him to just hold off on putting on the yoke till I verify it.
#6
I would install a proper 4L80 yoke. I have a 6L80. the TH400 yoke was installed on my driveshaft initially, but was much shorter than the 6L80. It didn't engage deep enough to be fully supported by the bearing in the tailshaft housing and vibrated badly. I picked this up running on a lift.
You can find the right part # through rock auto or parts.com or one of the GM ecommerce sites.
I sourced mine by looking up yoke application for 3/4 ton gas Silverado pickup truck, 2WD of the right year.
Doug
You can find the right part # through rock auto or parts.com or one of the GM ecommerce sites.
I sourced mine by looking up yoke application for 3/4 ton gas Silverado pickup truck, 2WD of the right year.
Doug
#7
there are several different types of output shafts. this link shows just a few...i think there are 8 or 9 total.
http://www.pirate4x4.com/forum/attac...-dsc00132.jpeg
you can use the counter bored yoke on a couple of them. i had to remove an o ring from mine to make a slip yoke work.
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#8
Thank you guys for your help. So I didn't have work today and drove to go remove tail shaft housing and look at output shaft. I took a picture to make it easier.
Sorry for picture quality my camera on phone is garbage. But here is my output shaft so witch yoke do I get to make it a slip yoke?
Sorry for picture quality my camera on phone is garbage. But here is my output shaft so witch yoke do I get to make it a slip yoke?
#9
I would install a proper 4L80 yoke. I have a 6L80. the TH400 yoke was installed on my driveshaft initially, but was much shorter than the 6L80. It didn't engage deep enough to be fully supported by the bearing in the tailshaft housing and vibrated badly. I picked this up running on a lift.
You can find the right part # through rock auto or parts.com or one of the GM ecommerce sites.
I sourced mine by looking up yoke application for 3/4 ton gas Silverado pickup truck, 2WD of the right year.
Doug
You can find the right part # through rock auto or parts.com or one of the GM ecommerce sites.
I sourced mine by looking up yoke application for 3/4 ton gas Silverado pickup truck, 2WD of the right year.
Doug
#14
I commented on a previous thread with a photo of the 6L80 yoke vs. TH400 originally installed.
A quick read here might help explain (the photo tells ): https://ls1tech.com/forums/conversio...-question.html
Here is the picture (6L80 is the long one). I would suspect the 4L80 is similar.
A quick read here might help explain (the photo tells ): https://ls1tech.com/forums/conversio...-question.html
Here is the picture (6L80 is the long one). I would suspect the 4L80 is similar.
#15
Well thank you guys for the info. I went and paid the driveline shop a visit. Showed him the picture and discussed basically what we were talking about here, he pulled out a yoke same size as the TH400 one pictured above with no splines in the beginning of it, he told me this is the one I want to use, so I went with his suggestion