15. The Bronco's stock transmission mount is on the left. It secures to the crossbar that sits under the installed transmission and bears much of its weight. It's a static mount that doesn't allow for much play as the vehicle encounters bumps, and as a result, it's prone to breakage. The improved design of the Autofab transmission mount (right hand side) utilizes a bolt and bushing to let the upper component of the mount move a bit and absorb some of the shock encountered by a moving vehicle. This way, there is some play allowed within the mount and it can flex, rather than break.