First, just a little fun information about the 1979 Z28 you can see the little pic of. I've had it since '99 To go with the theme of this forum's name, you could say that the ‘79 Z28 is White Knuckle Nasty! Because I can remember getting out of that car many times, hands shaking, heart pounding, Adrenalin pumped up and the temperature gauge at about 205°- 210° with that “ran it hard smell” coming out from under the hood. Even though my ‘79 Z will top out at about 155 mph, 1:1 with the Super T 10, that speed is also kind of scary even though the car is running smooth at high speed. Both upper and lower grills are air flowing-that’s right, the lower 1979 grill has been opened up with a matching top grill cut in half installed in the hole. But it works and looks factory! Back to the speed story- Some of the old Tran Am F bodies were faster than my 155 mph, I’ve heard stories of TA 178 mph! I knew a guy who worked at the same Chevron gas station I worked at back in 1976 who had a ‘71 TA 455 that did 160. TA’s back in those days were all known for being 160 mph cars Anyway, the gear that I have had some of the most fun in is 3rd, because in that gear, and back in the early 2000's, that Z was faster than a lot of the cars on the road, including the Mustang GT's I used to race. (Never was beat by one) I would just leave it in 3rd, let them catch up to about my back bumper and floor it again! That '79 Z28 would leave those little ponies, spanking them HARD! They did about 130 mph back then It was bye-stang! Bye bye Muh-stang! Raced one that was spraying it once, and he was closer to keeping up than any I had ever raced before----surprised the heck out of me, then all of a sudden he turned into a little speck in the rear view. That’s when I figured out he must have released the button! 75-125 shot I think, but I was naturally aspirated at well over 500hp (Z28500’s my name all over the place) What fun that car was back in the early 2000's I guess Ford must have gotten some complaints, because there’s some faster Mustang's out there now. I know this is supposed to be about seats so hold fast for another minute for one more thing because I promise you will like this!! I remember reading an article in Super Chevy approximately early 2000's about why people bought Mustangs vs. Camaro's. (some of you might remember that article) They took a survey and found out that 2 out of 3 Mustang owners were women! Boy, did I tease those Mustang owners when I found out that one! Ha Ha Ha Ha !!! THEY HATED ME!!! They tried so very very hard to smile and keep up appearances! They had just found out that their favorite car was preferred mostly by women! The pain was terrible! Ha Ha Ha Ha !! They lamented, almost in tears--No it's NOT, No, No, it's NOT, it’s NOT TRUE!! They sounded like dogs howling at the moon!! Oh they complained as they suffered!! WELL IT WAS TRUE!!!! Ha Ha Ha Ha !!! I even looked it up back then, Super Chevy was correct. According to the article, this is the reason why, Mustangs were a little bit taller, and the SEATS were higher up off of the floorboard than Camaro seats. Women liked that for getting in and out of the car with their dresses on! It was easier on them and their dresses!!! Ha Ha Ha Ha !!! Makes sense if you think about it!!! Picture this, A cutie pie gets in her Mustang with a nice short fluffy dress on. Maybe her dress is even getting blown around a little bit as she keeps her knees together while she turns them clockwise. ALL EYES ARE WATCHING as she places them, knees, stockings and all, underneath the steering wheel!!! Of course that would be easier in a higher up off of the ground Mustang!!! Oh Boy was I having FUN!!! Almost as much fun as driving fast! Embarrassed Mustang owners, all in front of EVERYBODY!!! At the Fri & Sat night fast cars meet, everyone's sides were splitting! And I was holding my hurting sides, laughing so hard! Yup, those were the good 'ole days!!! It was fast cars and fun! Well, to the Sliding seats, when I took the seats out recently to give the carpet a thorough cleaning, I had seat slider issues I had to fix because they had gotten some surface rust and I had to take them to the grinder brush and clean them up before I could repaint them. That was when I "Learned something new" On my '79 Z28, the passenger seat has 7 position "Clicks" and the driver's seat has 6 position "Clicks"! Hmm. Now there are left and right seat sliders, that is standard on all of our Z’s I think. Besides the left and right difference, there is also the difference of an "L" Bracket being on the passenger side slider while the driver's side doesn't have one. But other than the L-bracket and the difference in the number of positions, that is all that I am aware of that is different besides the left and the right’s. I guess some of you guys are going to go and check your seats out now, but who knows, a previous owner could have bought a replacement seat because one was worn out? But then again, they all might be that way. There is other possibility. Back when those cars were made, General Motors would use parts and accessories from the previous years to save money. Little things from seat hardware to headlight switches, transmissions to carburetors would be used on various models. For example, look at the A/C switches and headlight switches from that era, a lot of them are the same whether they are in a Chevrolet or a Buick. The point is, maybe that is why there are a different number of seat positions. Either that or it could be like an unusual penny that has a very rare marking, making it super valuable and my Z28 is worth boo-koo bucks because it has a 6 clicker on the left and a 7 clicker on the right! Come on y’all, we gotta stick together here! If I sell my car for a 100 g’s because I got rare seats, I’ll throw soma $$ your way for backing me up and providing the evidence! Z28500 P.S. A Mustang owner providing evidence qualifies too!