Posted by John Liles on September 10, 2016, 8:05 pm, in reply to "Re: L C eagle grade "
Hello Jack,& welcome to the forum! Simmons would put a vent rib on your 76 Plymouth Duster if you wanted. The best way to find out if yours is original would be to order a research letter. If your gun was born that way, the letter would likely verify same. Or, you could post a picture or two and we might be able to give you a pretty good idea if the work was factory or not.