I'm going to be replacing some steering linkage parts and front suspension components (tie rods, ball joints etc) on my '87 560SEL soon. The current fittings are all "maintanence free" ie they don't have zerk fittings so you can't lubricate them. Is this the standard or are replacements available that can be lubricated?

I'd much rather crawl under the car every other month with my greese gun than replace warn components once a year.

jlc