Originally Posted by First opel 1981
Assuming you are talking about the headlight rotaters...
They could over rotate but it's not likely. You would have to have them snap at a perfect point in the rotation cycle and thats highly unlikely.
One of my GTs had pins drilled in the rotators as well as the 8mm bolts. The pins were supposed to take the torque instead of the bolts. It was a hassle to work on it because 2 of the ins on each side had sheared on one light and everything sheared on the other light.
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On the contrary, broken rotator bolts (which are actually M5 bolts with 8 mm heads) are typically the cause of GT headlight over-rotation. And every GT headlight rotator came with three roll pins, to back up the three wee little bolts. But they often break as well, or when the headlights get re-installed by a PO in the past, the pins are inadvertently pushed into the rotator gear holes and aren't effective. Come to think of it, that is likely the reason for many of the M5 bolts getting broken.
Have a look at
http://www.opelgt.com/forums/2c-gt-h...echanisms.html
for some ways and means to repair the broken retractor bolts.
HTH