How to Replace the window regulator on the side door of an LLV postal truck
A frequent repair on the Grumman Long Life Vehicle (LLV) is changing out the window regulator on the side door of the postal truck. The United States Postal Service (USPS) uses these trucks for mail delivery, so the window regulator goes through a lot of use. The first thing to do on this repair is take the door off. Watch the video to find out the whole procedure.