These went into Chevy Cobalt into the side doors. I would guess that it would fit a Durango. I always tell everyone to consult their manual or just goggle the info. My son loves them they have a great sound in a small space.
You should have 6.5" stock speakers in their now so yes, it does not mean they are going to necessarily slide right in to replace the old ones but it should be close, depends on the bolt pattern of your old speakers
I normally don't like pioneer and haven't used them for years, so I really can't answer your question. But I've been installing custom systems for over 25 years and these speakers sound great. For the price they can't be beat. I won't pay high dollar for 6.5 " or 5.25" speakers because they are gonna blow out in about a year regardless of what brand they are.
Unfortunately I am not familiar with that viehcle, thus I am unable to tell you if these speakers will fit exact. The magnet is quite thin, so depth space will not be an issue...I suggest you consult the manual of the suv, to see what size speakers you actually have...Sometimes the speakers say 6.5, but could actually be 'oversized' which are a 6.75, or even 7"...Only ran into one case where I had a car with 7" speakers...It was very strange.
They said that the speakers would fit my 97 escort but they did not. I had factory 6.5 and ordered these to replace. They were closer to 7 inches than 6.5 I had to use the template to bore new mounting holes. I believe that the speakers are sized to the outer edge of the cone not the rim. These speakers also are not to deep because the 20oz magnet is more like 10oz so they are relatively shallow about 3 to 3.5 inches. Good luck with these I won't buy another set of Pyle. I also bought the 7x5 and they were to big as well only able to use 2 mounting holes on each side as I could not bore new holes since Ford mount is integrated into the cover. Again, I won't buy these again either. Hope this helps you, I will spend a little more and get another speaker next time.
Speakers have a range for their frequency coverage, once the range of the speaker begins to degrade the sound, it is handed off to the next component part of the speaker. The lower frequency range is the larger speaker with the largest voicecoil, the others are attached to the frame, midrange and tweeter components.
The hand off is done with a capacitor or a coil, this is done to allow the crossover point to allow minimal degredation in the quality of the sound. If you use both
a capacitor and a coil together, an RC crossover range will keep each speaker component in it's proper range. Some manufacturers use these very basic components
to enhance their products. Pyle has always had a very transparent organization, low cost efficient affordable simple designs. Some of their speakers come from China,
yet they still adhere to their quality and great sound. The 12" inch Pyle Speakers I built over twenty years ago with hand wound crossovers and poly caps, are still outperforming many newer speakers today. the foam surround wears out every ten years, I just have them redone, the voicecoils still work great.