Quote Originally Posted by camoit View Post
On mine, the first thing that was done was to shorten the bed by 1 foot. Then cut the opening larger and weld in sheet metal to the width it was going to be. Next came a cardboard dam around the hole bed side about 8 inches high. 2 part, 4 pound expanding foam over the hole thing. Sand to rough shape. Fill in all the BIG holes with bondo and cover with 2 layers of glass to make a hard shell. Then it's the basic finish work after that to make the final shape. I go into a lot of detail in my build thread. Parts 1 and 2 on the molding.

I have tried a lot of different foams and taxidermy foam is the trick. It cures in 5 minutes, it leave very small holes, and it does not shrink at all like other POS foam products. It's also much easier to work with and shape.