And it didn't hurt a bit. That little plastic lid is hard to get off but once you do, you can really clean the tracks and wipers and give the wipers a little re-tension for better contact. You'll end up with two points (180 degrees apart) on the lid where the leverage has to be applied. When snapping the lid back on, just put a dab of silastic or similar on the rim edges for water proofing. I pulled that Dorman one apart yesterday. The little disc inside has a different number to my original shift motor disc and the tracks are different. So it wouldn't work. But its from the same disc switch manufacturer who supplies both Borg Warner and Dorman. Haven't found out who that is yet. The only difference between various shift motors is the difference in tracks on the disc. However, everything else is interchangeable. There are 3 types of 7 pin plugs. 1 rectangular (American) and 2 circular. One of the circular ones (also American) has the 7 pin connectors in 2 rows of 4 and 3. The other 7 pin round plug is the one used in S/E Asia (inc Aus) and has the 7 pins arranged in 3 rows of 2,3 and 2 pins. I think Jacnden put a pix of one up a few posts ago. And there we now have a number of easy solutions available.