I agree about the leaking u-joint housing, Carl.
However, a few other possibilities should be posted (warning: the following descriptions are boring and #3 is somewhat ridiculous):
1. Transmission removed from the truck before removing the engine (clutch housing/assembly attached to the engine)
- obviously the u-joint assembly would have been opened and the u-joint disconnected
Install the engine (clutch housing/assembly attached to the engine)
- install/attach transmission to clutch housing/assembly
- get a gasket/seal kit and follow the adjustment instructions in the Shop Manual
- reconnect u-joint and torque-tube u-joint assembly/cover
(I usually do this - to allow inspection of the u-joint)
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2. 4-speed transmission: engine/transmission cannot be removed/installed together. The 4-speed transmission will not clear a frame cross member, unless you raise the cab (people have done that).
(If I am wrong - please correct me)
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You will like this next method (engine and transmission together and no need to disconnect u-joint):
3. I think some pre-Advance-Design Shop Manuals suggest this procedure (when removing engine/transmission together) - no need to open u-joint cover/housing:
- put wheel chocks on both sides of one or both front wheels
- jack up the rear of the truck
- put the rear of the truck on sturdy stands, under frame rails
- disconnect the re-ward spring bolt on each side
- disconnect rear end (transaxle) from springs (and lower rear-end of each spring-assembly to the ground)
- disconnect various rear brake lines/cables
- lower rear-end assembly (so it is rollable on the tires)
- loosen the collar/cap at the rear of the u-joint cover and slide the collar/cap cover rearward
- roll the entire torque-tube-assembly rearward (with wheels/tires still on, of course)
- remove engine/transmission together
After engine/transmission (and u-joint-assembly/housing) have been installed in the truck (as one piece/assembly), reverse the above procedure:
- no need to disconnect/reconnect u-joint, just slide drive-shaft end into u-joint housing, by rolling rear-end assembly towards the transmission/u-joint-assembly (first, make sure u-joint-housing collar/cap is in place on the torque-tube end, or you will curse for a while)
Note: this is complicated to describe and to visualize, but, it is not a joke - I did this once with my Suburban (do not ask me why) and it worked fine.
