I'm changing the window regulator because the motor is shot. This was in the bottom of the door and I have an extra but don't understand how it mounts. Most of the threads deal with the other slide that must be peened onto the regulator.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.