Those are actually a true fit for a YJ, and as far as a cj goes, they add approx. 2" of tire clearance to the rear of the front fender, & approx 2" of tire clearance to the front & rear of the rear opening, so in answer to your question: YES they do require cutting, to match their profile, they are not a direct fitment, or (as I have seen others do), mount the flares & paint the body overlap black, & it is virtually un-noticeable, also the front "roll" of the flare is more squared than the cj front "roll" of the factory fender.
I actually have a new unused set of these exact ones, that I will not be using, once I got them & saw the overlap, I decided if I was going to cut the fender to match, I'll just go with the TJ flare, because you pickup an additional 4" of tire clearance.
Drop me a pm with your email address if interested, & I can also take pics of it held up to my Scrambler so you can get a better idea of what I am talking about, also if you want them buy mine, they are brand new, & I'll sell them cheaper to you than amazon has them for just to get them out of the garage!
No, trout put on YJ front fenders to match the flares. I think that's the ideal setup to get the additional clearance of the flare and keep a matching look. I personally dislike the mismatch of the YJ flares on CJ fenders.
Of course if you get a set like they mentioned with CJ fronts and YJ rears, you're golden.
yep, mine started with a dented fender and cheap pair of Wrangler fenders bought off CL. Then I found a set of used but never mount flares for a wrangler. I like the Wrangler fenders on a CJ. If you want to keep your CJ fenders, call a shop that deals Bushwacker. The rear wheel opening on a Scrambler is almost the same as a YJ. They can call Bushwacker, it takes some good talking, but they can get a set off YJ rears and CJ front ordered from them.
Below is a link to the ones I acquired. However after reading this thread it appears that there are bushwacker or rampage (same???) cutt out fender flairs which match these (which are the YJ style) spicifficly for a CJ. I am curious about the differences and if anyone has a link, model#, or pics of the cj style fronts?