Shaft drives are awesome until the universal joints need doing. Then its a bit of work and once fixed, they are awesome again. The very last UJ next to the rear diff was really, really f*cked.
The stock M8 nuts are 12mm size, which means a deep-wall socket fits nicely over the UJ. It doesn't work when someone lost them or rounded them off and swapped them for 13mm (DIN standard size) nuts.
Aside from that - easy peasy.
Quick witness mark to make sure it goes back in the same orientation. (spoiler alert, you can't reassemble those 180 degrees out, so as long as the the UJs are in the same plane you've assembled the shaft correctly!)
Generally there's two types of UJs: the ones with clips on the outside and on the inside. The latter is normally found on LARGE trucks. (With UJ-sizes to match.) Disassembly works the same either way: There's a retaining clip that prevents the caps from falling out and keeps everything in place.
To say that this UJ was completely dead is a bit of a mild understatement.
And neither lube/grease nor a single needle inside those two worn bearing cups.
Easiest way to install new cups is to press them in on the vice, install one of the clips and then preload everything either in a press or the vice
Would have been rude not to get the version with the grease nipples, right?
... and even more rude, if one were not put them to good use.
Fun fact: the mounts of the transfer case are so worn out, that you can push it towards the front by greasing up the splined section of the shaft. 😅
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