OK.. on the ground effect After the driver's door the vertical part of it that goes up is splitting off.

It's still together but is splitting at the corner.

I want to save it while I can and I have it prepped for repair now.

What do you guys know that I can put in the INSIDE to join the two corners together strong.

I don't know what material the ground effects are made out of.

Also under the black paint there is red color.. could this be a sign of a previous owner wreck?? On the back there is hints of red but was black sprayed over.. doesn't look like a fix job but I don't know what color the ground effects are originally before they are painted.

Thx for help in advance..

 

Thoughly scuff the back side with 60 grit. Then use a little fiberglass resin with a small patch of glass mat.
If it's seperating? Then you'll want to apply pressure to hold the crack closed for a few hours while it's drying.

Let it dry good and then sand & grind any edges that might be visible from the outside of the truck.

It's easy and cheap, Rich