The first step is pulling the old mount. Our crossmember was out, as was the trans, but it easily unbolts from under the car.
Most of the older Mopars that have made it through thirty-odd years to be around today are probably going to be around forever. Run a new car until it starts to crumble, and chances are it'll meet its end at the crusher. Take a surviving vintage machine, drive it endlessly, and it's fair to say that someone will be willing to take over keeping vigil on that treasured tin. Yeah, forever is a long time. Problem is, many of the pieces that went into building that classic mover were never designed with "forever" in mind. Go back with the same part, and it'll wear out or fail about as quickly as it did the first time around.
With modem materials, the typical life of a "replacement" part can be much greater than those that were around decades ago. Making a change while doing routine repairs can mean the job can afterwards be forgotten about-forever.
While doing some tranny work on one of our Chargers, a quick look at the soggy rubber trans mount told us its life was far from eternal. Constructed of mortal rubber, tranny mounts will always succumb to the ravages of time, with their end accelerated by the presence of seeping tranny fluid. Modern chemistry has brought us Polyurethane-tough, resilient, yet flexible and able to buffer vibration. The Year One catalog offered an Energy Suspension polyurethane tranny mount kit, an upgrade enduringly superior to the rubber it replaced.
