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We now need to repeat the bearing cap install process, this time
using the inner axle shaft. In the above picture, I have positioned the
cross into the yoke ears of the inner shaft. I have also started one of
the two remaining bearing caps into the yoke ear.
Once again, properly position the screw of the u-joint press on
the center of the bearing cap and apply pressure. The cap will push into
the yoke ear just as it did before.
After the cap is pushed into place (remember, I push mine just a
bit further than the need to be), take a new C clip and install it in the groove
on the bearing cap. Make sure the C clip fits properly in the
groove. You don't want to loose one of these on the trail, as it can cause
the bearing cap to become loose and if this happens, the u-joint will surely
fail. After the clip is in place, install the remaining bearing cap and
then install its C clip as well. As this point, you will have a fully
The u-joint I used (Napa 377 Extra Strength) comes with a screw
in needle grease fitting. It is screwed into place with a flat blade
screwdriver. Some folks don't like greasable u-joints while others
do. Me? Well, I am still trying to figure out which one is
best. For now, I am pretty sure that these trail spare axle shafts will
get me off of the trail before the u-joint fails because of a grease channel.
OK....that is all there is to it. Here is one completely
From here, they get wrapped in that heavy duty shipping wrap (that industrial strength Saran Wrap) and put in the Jeep. With luck, I'll never use them. But, if I do manage to take out a u-joint, I know I have a properly assembled spare shaft that will do the job. And hey....don't forget to get yourself one of those handy Harbor Freight u-joint presses. I tell you, they make this kind of job so easy to do!