Idler pulley maintenance questions

Hi all,
Coming up on 100k on my 03 taco, time to rid it of the morning squeak.
I bought new belts, confirmed the sizes and I am ready for the swap.

My questions are....

Is there anything for maintenance on the idler pulleys?
I would love to repack them, but I did not see anything in the manual.

I see the pulleys in the toyota parts list are 2 different numbers with a price difference of $115.00, but dayco lists them as the same replacement part for $25 ea.
Has anybody tried the Dayco pulleys?

 

not on the tacoma yet, but i bought dayco idler pulley(im pretty sure it was them) from autozone for the 02 mustang my wife had...never had a problem with it either.