How to keep my tires from rubbing? . . .

Well, I have a 2011 Tacoma, My first truck. I kept it stock for some time. I just had a 2.5'' leveling kit installed, and I had 285/65R18 Nitto Terra Grapplers installed on some new wheels. They cut some of the plastic to make room, but I still rub some on the bottom front fender/bumper area. And the plastic fender wall on the inside seems loose and flaps when I'm driving at highway speeds. How much more could I trim off and how can I secure this inside plastic so it doesn't get caught on something and more so much noise? Has anyone else have this problem or did the guys I have install this to a shotty job?

I can add some pictures if that would be easier to understand what I'm asking.

 

You can trim as much as you want. Trim until it doesnt rub.

If the fender liner is loose, they probably broke and/or left out some hardware. Look at see what it's missing.

 

Rub relief....

 

^HAHA i was gonna say just add a little grease to it, should quiet it right up, wouldnt mind seeing some pics of your ride OP

 

Once you start trimming, you've changed the shape of the inner wheelwell and it's lost all it's structural support, so you need to add some back.

In this thread, you can see an aluminum strip I fabbed up to do the job.

http://www.tacomaworld.com/forum/suspension/115775-bjmoose-installs-full-ome-kit-rear-brake-lines-pics.html

 

Here are some pictures