So i have a cracked housing on my trunk pull-down motor. Its a 3-pin unit, #20160580 on engine itself. I found out 3-pin aint made anymore, but 5-pin motors are. Externally, the fastening points for housing to car look the same. Also, external difference is that unlike on me, the electric motor has different housing aswell, mine being round, new being flattened on sides. So if anyone knows, can i use Dorman #747-000 or #747-001 and just install the 3-pin module driving the motor, on it, and it works, and installs properly?