so i gutted the untire inside of my blazer and i have found a lot of holes from old interior in the body of the truck... i need to fill these holes were no more water is getting in...should i just rhino line the untire inside... will that solve the problem or would something else be better

 

If they are just small screw holes cleaning them up and putting a dab of RTV over them would keep water out. If they are something more substantial, you really should weld them up