What's the best way to clean up this rust? (pics)

i use muratic acid as well. take less than 20 minutes on light rust like whats on your gears. wash well with soapy water and baking soda to help neutralize the acid. lube em up right away to keep em from rusting again.
muratic acid has a nasty habit of your parts starting to flash rust after you wash the acid off and the metal starts to dry. i once sprayed a complete cab of a 37 pick up with acid after we got it sandblasted and i wanted to get all the rust out of the pits that the blaster didn t get.......life changing experience. long story short...i couldn t get it washed and dried before it would start to rust again...i got bailed out by a local power wash company with a product called RUSTBAN. you acid wash....rinse and neutralize, rinse and spray with rustban while its still wet.....and dry it...
no more flash rust.
my old man was pissed after he just paid 500 bucks to get his truck blasted and i made it rusty again. LOL. he probably wouldn t have spoke to me again if i didn t figure out a way to fix it.