LouieM

I'm about to install the new stock PW regulator and motor into my 67's passenger door. Attached are pics of the whole setup and the spring I'm concerned with. How much preload should be on the spring before I put it inside the door? Should I extend the window regulator to the full UP position, install the coil spring, then compress the regulator to the full DOWN position? That sounds like the likely thing to do, but one never knows. I'd like to hear from anyone else who's done this before.

Rustman

Older post, but did you ever figure the spring preload thing out?