Semi Tractor Trailer
Some Assembly Required - Season 2

Semi Tractor Trailer ()

Rating

Available  to rent or buy

DESCRIPTION

How do you build a semi tractor-trailer capable of pulling up to 80,000 tons and make it fuel efficient? Brian Unger finds out at the Peterbilt factory. Then, he heads to Upper Sandusky, Ohio to make a shotgun that's been around since 1937.