I'm planning to grease the driveshaft (propeller shaft) of my 2004 4Runner. I read this thread but it's about 3rd-generation 4Runners and my 4th gen vehicle seems different.

I also downloaded the 4th gen service manual from this thread but as far as I can see it does not provide clear information about how to grease the drive shaft and which type of grease to use.

So, here are a couple of photos. My car seems to have only three grease fittings (Zerks), and I've numbered them in the photos.





It looks to me as if Zerks #1 and #3 are supplying grease to their respective u-joints (cardans), and therefore most likely require regular lithium grease. Whereas the grease that is applied via Zerk #2 is more likely for some type of metal-on-metal application and probably requires lithium grease that contains molybdenum disulphide.

Am I missing any Zerks? I can't see or feel any others. Are my guesses about which grease to use correct?

Finally, does anyone have any experience with renewing the grease? Can I just keep pumping grease in until the grease that is coming out is clean stuff? Or do I risk screwing up seals that way?