Unless you have one of those tools and a flat place to take the trans out on. There is no way on gods green earth you'll get the front end up high enough to remove it from the bottom. safest way for the orginal poster is to go through the top. Ive done it both ways top and bottom and forget it through the bottom for safe clearance for the body the cat has to be up at least one foot to one and one half feet. to safely slide the trans out