Hi Josh,
Welcome to Opel ownership! Headlights are a common problem. As mentioned in the previous responses you need to check the cable under the front of the hood and lubricate it and the joints of the arms it attaches to.
When you take the headlamp housing out be sure to lubricate the lower pivot point toward the front of the headlight housing, and toward the rear of the headlight housing you will find the brass colored gearing. This is also a point that needs lubricating.
Of course this is just a simple maintenance explanation. If your car has been sitting unused for several years I would suggest removing the headlamp housing,
cleaning and relubricating the lower pivot point with some grease, remove the brass colored gear mechanism toward the back of the headlight housing, take off the microswitches, wash and dry it thoroughly, oil the pivot point and grease the teeth, reinstall the microswitches (with new ones). Reinstall the brass gear mechanism. Before going any further consider rewiring your headlights at this point. GT headlight wiring is NOT grounded and the wires have a tendancy to become brittle and the insulation rots away.
Just a suggestion on how to do things the thorough way the first time around so you're not banging your head later. :banghead:
Go to
Forum Jump scroll down to electrical and then click on lights, do a search query on "headlight rewiring" and numerous posts and even pictures should come up to help you with this.
Also you can call Opel GT Source 1-800-673-5487 and buy "Opel GT Owner's Workshop Manual". You can also get current and back issues of "THE BLITZ" newsletter from The Opel Motorsport Club,
Opel Motorsports Club , with very helpful and clearly illustrated tips on how to do upkeep and restoration, rewiring, body work etc.
Also another FYI we just mentioned with another new member. Keep in mind 1969 GT's are very rare! Check your VIN# to be sure, 69's will have Square turn signal indicators in the dash, some have a two piece front bumper, turn signal lever with a button on the end of it for high beams, a vinyl covered ash tray, no pop out windows, no vinyl tray around the emergency brake..... and other small things unique to 69's.
Look forward to seeing your pics soon!
Neil