Quote:
Originally Posted by pistonbroke
Put the yoke in the C4, push it all the way in. Now pull it back 3/4", then with help messure from the center of the U joint cap in the C4 yoke to the center of the U joint cap on the rear end. This is the messurement needed and it should be done with the vehicle sitting in its normal stance. Tim
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3/4" shorter is excessive! The aim is to have maximum engagement of the spline.
You need enough clearance to slip the yokes over the coupling on the pinion, and make sure the spline doesn't bottom out through the suspension travel.
You will be able to see where the tail shaft seal has been running.