Quote Originally Posted by waaaaht View Post
Did my drivers side yesterday with the SBC bracket. No matter ( spacers, washers, bungee ) what I do the smaller front wants to shift down on me. Tracks and rubber channel looks fine.
Same issue with my passenger side as well, but now at least it stays on the regulator instead of falling into the door.

From what I see, in my case, is that the plastic guide on the regulator is broken on the forward side. This allows the front to tip in instead of staying level.

Works great going down, but going up is another story...