Quote:
Originally Posted by jpnovak
now, the problem is that the new regulators were advertised as fitting a wide range of cars. This is in fact, not true. The horizontal slider is a totally different length too and will not bolt in the door. I honestly don't know if they come in different sizes. I just used the old factory power regulator horizontal slider guide (That should be an acronym) instead. Here is the difference in length. The shorter one is correct for the 1980SC door. Maybe someone can explain this.

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Jamie, the factory moved from the 195mm long horizontal track to the 215mm long track sometime in the 80’s. You can reuse the rearmost mounting hole and drill a new forward mounting hole in the door per Tech Bulliten 7.