help cannot find u-joint grease fitting
 

i can't find any grease fitting on my u-joint i washed truck & engine cold (not sensors). use spray-nine then braked cleaner on ujoints (a little). used a bright flashlight. and an inspection mirror. zippo no zerk seen. i saw one comment (i'll say rumor) by someone GM stopped using them due to leak problems i know personally replacing ujoint on previous vehicle i had a choice (fitting, or sealed) (i chose sealed) ANYONE have any clue? chevy silverado 1500 4.3L 2WD ? am i blind ? (answer is 1/2 today, but never mind that)

the factory stopped using greasable u-joints many year's ago on most model's because they were a little bit more money and most people never kept the vehicle long enough ,they did not know what a grease gun was .plus you cant sell replacement part's if you actually maintain them. when i grease i purge grease them( it hits the ground )

thanks a bundle i can move onto more important things, like if my wheel bearings are giving me bad mileage or if my breaks are dragging :) really - thanks