I checked out all measurements from the specs that was on the website for the test fitment bulb and printed it to exact size and put on carboard and used as template to see if would work. It was very close, but looked like it would work. So, to be 100% sure they do fit perfect. I ordered Test Fitment Headlight....I live in Ohio, and this came from California so needless to say it took 10 days coming USPS....I wasn't in a big hurry since still building my show car....so NO need to ship UPS or Priority Mail....It was $10 for Test Headlight and $12 to ship.... but keep in mind.... they gave me a $10 credit for this when I ordered LED Halo's for the Cuda....I received the Test Headlight and did the pre-fit and was almost a perfect fit and had about 1/2-to-3/8-inch space to the back of Test bulb and fitting it in the headlight trim ring did take some finessing to make it fit perfect! But was very happy with the fit. The sales staff helped me out with all my questions and needs to make this happen. Thanks Jeremy and Melvin