I cross the Michigan/Windsor border often ... for the past 20+ years ... NO BS ,, if you are nice/honest and stare them in the face when talking to them and have necessary documentation ready ,99.9% they just let you through .... when bringing parts across . OH and use Sir when answering questions... ONLY answere questions that are asked , do not give more info than what is asked ....Respect goes ALONG way with them ... Remember if you cross often ... they have your liscence plate ....