Front and Rear of driveshaft question...

[effnay]

Hello all.

I made kinda rookie mistake when restoring my driveshaft. When I pressed the yoke and u-joint out before painting it I failed to mark which end the trans yoke goes on and which end the u-joint for the rear goes. By the way, its a 84 c10 2wd Longbed.
I took some measurements from where center of u-joint to where the driveshaft starts to bulge out. It 6-1/2" on both ends, give or take. I'm kinda under the assumption that it does not matter where the yoke or u-joint goes being they are the same distance, but figured I'd see what you guys thought.

Any help would be greatly appreciated.

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[Bextreme04]

Not sure about the C10 driveshaft, but the K20 driveshafts have different sized U-joints on the front and rear of the shaft. A long bed C10 should have a two-piece shaft with a center support, right?

 

[effnay]

Not really sure about the c10's having a center bearing, seems like I read about certain years having them,but mine does not. I have a 84. Guess I failed to mention that both ends are the same size, so u-joint or slip yoke will fit on either end. I would like to think it doesn't matter but figured it can't hurt to ask here before pressing parts on.