Best bang for buck below
Fronts:
Energy suspension bushings
Rear Bump Stops - Toyota 4Runner - 8.9104
Rears:
OEM toyota bumpstops
48306-60201 & 48036-60011
*** you need one for each side***
I made the mistake and ordered 2 of one side (rear bumps), not realizing they're side specific. I don't believe anyone had clearly noted this so I'll save you guys the expense lol