Merciless McRae

okay so i have some major trunk rattle going on that needs to be fixed. first off i am going to put ice guard in the trunk on the lid at least. (i know its stupid but i have no money, litteraly) and i was also thinking about putting the expanding foam in the holes, just wondering i have heard of people warping their exterior, would it be safe to do it if i only filled alittle at a time that way the foam would be able to expand inside but not have so much it has to warp the metal?? thanks in advance

Merciless [img]graemlins/freak.gif[/img]