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Old 09-22-2011, 06:42 PM   #1
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Measuring My Driveshaft

I'm measuring for a rear CV drivershaft that I'm having Tom Wood built and I want to make sure I've measured everything correctly.

It's an 8.8 rear with an Advance Adapter SYE installed. You can see I have a Spicer Flange Adapter for 1310 u-joints.

I've set the angles the same on both yokes (like it would be if a driveshaft was installed) then tied a piece of string middle on one side and then to the other. Marked off the length and I've gotten about 17 inches. I just want to be sure that this sounds correct and that everything looks like it was done right before ordering. I know the string looks like it has slack but I just tied it up so I could take the picture.





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Old 09-22-2011, 07:54 PM   #2
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Measure between the face of the front u-joint yoke and the center of the hole on the yoke where the bearing cap is inserted. The distance measured needs to be between the two points at which the center of the front and rear u-joints bearing caps are located.

That's an unusual rear yoke, that type requires you manually seat the u-joint into it. Can you replace that one with the same type of yoke that is on your t-case output shaft? It'd be much easier to work on your rear driveshaft if you did.

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Old 09-22-2011, 08:51 PM   #3
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That or replace with a flange plate if possible as well.
If your ordering from Woods their site has pics of how to measure as well
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Old 09-23-2011, 11:11 AM   #4
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It's actually just a flange adapter that bolts onto to 8.8s pinion flange. You seat it on the driveshaft then simply bolt up the plate.




Going the alternate option is a replacement pinion yoke which runs about $150, at this point definitely out of my wallet.

And wow my pictures are terrible, sorry about that guys
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Old 09-23-2011, 11:17 AM   #5
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Your last two pics are great.

It's probably just an optical illusion but that last new picture makes the pinion angle look like it could be a tad too high, like its angle could be a little higher than that of the driveshaft.
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Old 09-25-2011, 10:01 PM   #6
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... sorry Jerry, shoulda mentioned I stole them off of Google just to show how that adapter bolts in. Tomorrow I'm going to go out and recheck the angles and measurements. My fear is giving too big a measurement as opposed to an inch short.

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