Do I have everything for my Fuel injector replacement?

Going to replace my fuel injectors this weekend and just want to make sure I have all the parts for it, Truck is 3.4L v6, 200,000 miles

Will have (so far) If there's anything else I might need besides tools please add what you suggest and where I can get it. - Thanks in advance

-Motor west Fuel injectors Denso Fuel Injector Upgrade Set for 3.4L V6 4Runner Tacoma and Tundra – HP831 – MotorWest Performance
-Plenum gaskets
-Throttle body gasket

 

I haven't done a 3.4 for a few years, but the crush gaskets that go on the lines to the rails. I like to loosen them and pull off the rails individually.

 

How do you know they need replaced? Just curious.

 

Some people replace the fuel pressure regulator as a "while you're in there" preventive maintenance. I chose not to mess with it when I did my injectors. If you do it, make sure to also buy a new o-ring for it.

 

The truck was shaking badly and check engine light went on and got P0303, replaced spark plugs and wires, still misfire on 3 so going to do Fuel injectors now.