Few maintenance questions

[Kangaroux]

Alrighty I'm new here and I've never really done anything with my mom's Camry but the other day I changed the oil and noticed while I was down there that it looks like the car has a transmission drain plug. The plug I am talking about is on the drivers side and the engine oil one is on the passenger side.
Is that correct? Its a 2004 XLE 3.3 V6. If someone has a picture of it to confirm that'd be great!

I'm not doing this stuff to her car as it only has 17,500 miles or so.
My cousin has a 2005 ES330 with 100k and wants me to do random stuff for him.
Since they are the same engine it's all good right?

Now onto spark plugs for the ES330. I've searched and read stuff about the rear 3 plugs being hard to get to. Is it really bad or around like 1 hour or so for all 3? Do I need to remove the wiper cowl stuff or is it all accessible as is?

There is also a knocking noise and feel in the steering wheel if it is turned left and right repeatedly. I've changed the swaybar end links to new MOOGs and that made it go away for a bit but now its back but not as bad. Any ideas on what this is? I've grabbed the shaft above the brake pedal closest to the firewall and applied downwards pressure on it while I jiggled the steering wheel. This seemed to dampen the noise a bunch.
edit- ^ his car has all original equipment on it. Nothings ever been swapped out other than the endlinks

Thanks guys!

[Kangaroux]

Nobody? :/

[gdanaher]

I think that nobody responded because the nature of your questions belied your lack of knowledge. These tasks may be above your pay grade right now. Leave the transmission plug alone unless you know what's on the other side of it. To get those three plugs out without some experience won't happen in an hour. I would suggest that you apprentice with someone you trust and who can provide some guidance. If your cousin's car has turned into your 'project caar' and he understands that, then go ahead and start draining fluids. Just note how much came out, was it ATF or hypoid gear, and know how to replace it before you pull the plug. Don't allow your cousin to be angry with you if things go south.

[Kangaroux]

I'm more used to working on my SHO. The idea of a factory tranny plug befuddles me there since mine doesn't have one and I had to drill the housing and put my own in. I won't be draining any tranny fluid its just spark plugs here

I've done spark plugs once before but it was a Crown Vic where all the plugs were easy to get at and not wedged up against the firewall

The only thing I won't be able to figure out myself is the knocking in the steering. The few times I've experienced it was fixed with new endlinks this time it sort of did but its still there