Quote:
Originally Posted by Proctor750
I had the 3 piece shaft for the 91 SDL shipped to driveshaft pros in garden grove CA and supplied all bearings/boots etc.
They rebuilt it/balanced it etc and shipped back.
Now I'm staring at it here and I can't decide which side is the front.
Front and rear shafts are the same length with same bumps for alignment.
The only clue I can find is in the manual where it indicates the centering sleeves protrude different lengths.
Mine look closer to 19mm and 24mm so would that make the shorter end the front?
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1) Drivelines, being mostly cylindrical, are not usually thought to have "sides". However, they do have "ends"; a forward end, and an aft end.
2) Beginning at the u-joint in the center of the shaft, the one-piece section is the aft end, and the two-piece, collapsible section, containing the center bearing, is the forward end.