drive shaft measurement

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Gator77

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does anyone knowdrive shaft measurement. for 904 to 8.75 and or 727 to 8.75 . i have a 75 duster
 
It is fairly easy to measure your car. It works best with two people and you have the shaft out. Car on the ground or supported( as it sits on the ground) with jacks.
Measure from the transmission spline shaft where it sticks out of the tail shaft, to the rear axle pinion flange at where the u-joint bolts to.
Then you can take that measurement to a shop or find one at a swap meet. If there is not engine/trans or rear axle you may have to wait. I have on out of a 72 Duster, but it will take me several days to get an measurement. Hope this helps, let us know
 
Here is a good reference;

drive shaft b.gif
 
108 inch wheel base Duster 904 with 8 3/4 drive shaft is 48.75 center line of u joint to u joint
 

This is definitely the best chart in terms of detail. One suggestion if you are making the length measurement yourself is to (gently) clamp the hook of the measuring tape to the face of the yoke. This makes it easier to read the tape at the transmission.
Denny's has really jacked up their prices of late so I ended up going with Driveshaft Specialist Inc. out of San Antonio, TX.
 
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