Vince, if you contact Rich over on Yenko (his profile name is Enoch) he finds and sells a ton of OE hardware for first gen Camaros. He may be able to answer your question while looking at a complete set for the application you are talking about. Great guy, been very helpful to me. If you order a set from him, if he has it, may take some time to get to you if he restores the set for you. Just FYI. Thanks
If you PM me, I can give you his phone number directly to call or text him too. Thanks
