I have used Q-H ball joints (Brit) with fairly good success but you
have to put grease in them before installation. I wiped out a pair
in short order in Panama because I didn't. You undo the boot and
fill it with grease, then put the boot back on. Since then I have always
checked the boots of new ball joints to make sure there was grease in there.

The hardest part of replacing ball joints (if you don't have the
right tool) is getting the tapered pin out of the spindle.
There is a factory tool that will do this, sort of a screw-jack
device that pushes the pin out. I've made some similar ones that
work pretty well, so if you decide you want to remove a ball joint without
destroying it, e-mail me offline and we'll negotiate.

Otherwise a pickle fork works well but destroys at least the boot.

BTW my tool will also remove upper and lower ball joints on 140/164.
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma