No, you wouldn't do the doors. But there is something to be said about filling the chassis rails. Also supposed to help cut down on road noise. I think that's why Ford experimented with it in their F-150's (A-pillars, among other things, iirc).
No, you wouldn't do the doors. But there is something to be said about filling the chassis rails. Also supposed to help cut down on road noise. I think that's why Ford experimented with it in their F-150's (A-pillars, among other things, iirc).