Good tip from Wil. The Seals It seals are nice, but they're a lot more expensive than the darn rod ends! I wholeheartedly agree the solution to contamination is to keep the dirt out. I don't mind spending a bit of money to put something together nicely. I just can't justify the Seals It pricing.
As an aside, I wanted to see if I could install these booties on the 935-style rod ends to extend their life but they won't fit in my housings. Coincidentally awhile back I happened to be searching for some stuff at Baker Precision, whom Sherwood provided a link for, and I stumbled across their more economical boots. Go to very bottom of the page
Rod End Seals, Weld In Adapters, Spacers And Reducers Rubber Boots Lock nut jam nuts
Their rod end boots are much more reasonably priced than Seals It's. I think the boots are the hot setup for the sway bar drop links. Thanks for the reminder Wil.