Boxing a Jeep's C-channel frame is an old-school trick to add beef to any old Jeep with a C-channel frame. Heck, the factory even did it on some models and in some areas (near motor mounts and spring ...

Once one or more of the mounts fail, the engine is allowed more freedom to move about, placing undue stress on the transmission case at its mounting point. The best case is the transmission mount also ...