^^^This spoiler is similar to a 1974-1981 style not 70-73 style. It looks to me that they completely changed the profile of the spoiler both front and rear. I want to keep the rear profile of the spoiler the same just change the front spoiler angle. I don't know about the Greening Auto spoilers mounting but my spoiler will mount exactly as the original, meaning no modifications to the holes you already have in your deck lid. We will see when it is all said and done and do a comparison of that greening auto spoiler to my spoiler. I'll take that bet, what do we win? This is a plan of mine and I hope a few people find it a valuable addition to their car's and have a want for such a product.