Once Summit inspects the part and deems it was installed, even with zero miles, they call it used and will not issue a refund. BTDT
There not supposed to.
On new sealed solid U joint I get, I take them apart just to double check each cap has grease inside of it. The bearings are roller so they do not get packed like a wheel bearing. What I do is just add a cap full of grease to what is already there in each cap, slide the cap back on and go. The centrifugal force will provide all the gravity and pressure needed to force the grease I put in the cap as the old grease wears out & thins.
That is correct. That’s the idea. As delivered, it should be a life time U joint under normal use.