What is the difference between https://www.amazon.com/Bushwacker-31913-11-Toyota-Extend-Fender/dp/B000COC9OO
And https://www.amazon.com/gp/aw/d/B000CO89RK/ref=psdcmw_15709431_t2_B000COC9OO
Can you use the Bushwacker 31907-11 on a 99 4runner or do they only fit the older ones? I have aftermarket...
