Vintage AMC Garden Tractor Lawn Mower 7hp Briggs & Stratton. Vintage AMC Garden Tractor Lawn Mower. 7hp Briggs & Stratton, 3 speed. Runs and drives good. Create listings that get noticed! With Auctiva’s 1,800+ Templates. The item “Vintage AMC Garden Tractor Lawn Mower 7hp Briggs & Stratton” is in sale since Saturday, August 27, 2016. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Lawnmowers\Riding Mowers”. The seller is “bbqmania” and is located in Charlevoix, Michigan. This item can’t be shipped, the buyer must pick up the item.