Totally unrelated to the Original question but to the tangent were on now.
Was in Home Depot and asked if they had grease fittings/zerks. First lady asked what there used on...i was caught so offgaurd as there on everything. I said machinery, tractors, implements, lawnmowers, cars...lots of stuff. she said go to mowers. I went there thinking if they had them they would be in the hardware drawers. Go to lawn section as the guys there and they said go the the hardware section. Go back see 2 other guys and they said automotive section after explainging what they are??? At this point i am pretty sure they dont have them. In the small automotive section they keep pointing out grease and grease guns!!! I said no i need the fittings those hook too???? (i had to get something else i did not go to HD looking for just grease fittings)
Long story short i got them at Orielys. were like $7 a package!!!!! i was like i ought to just replace the u joint for that price!! but i did not want to replace one and all the banging!