8L90 to np208 help

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Santoni720

Junior Member
Joined
Nov 3, 2022
Posts
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Location
Jacksonville, FL
First Name
Chris
Truck Year
1979
Truck Model
K10
Engine Size
350
I have an L86 with a 8L90 I'm going to put in my 79 K10. I have a np208 that im going to mate with the 8L90. I already have a rebuild kit for the 208 with a 32 spline input shaft. I know the input shaft needs to be machined down to accept the O ring that's on the output shaft of the 8L90.

Is there anyone on here that has done this and can give a better explanation of the process and what exactly needs to be done?
 

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