I just purchased a 2019 Mustang GT Performance Pack 1 6 Speed manual and I already have a problem with only 600 miles on it. The clutch and or transmission has so much slack in it, it makes it difficult to perform any smooth shifts especially 1 to 2. Off clutch the driveline chatters and clucks and there is a whole lot of lash. So, I put the car on the lift to inspect it. My suspicion was confirmed by simply rocking there rear tires back and forth just a little. It the noise and looseness appears to be coming from the bell housing and clutch area. I am very discouraged and will be contacting my blue oval dealer. Here we go...

 

I think I saw the pressure plate rotating. Maybe loose flywheel bolts?

 

Thanks for the reply blk12vert! But I took the car back to the dealer today and showed them the video. They immediately asked me if I wanted another Mustang and actually offered me another exact one but just a different color. After giving it some more thought I actually walked out of the dealer today with a 2018 F150 Lariat 3.5 ecoboost on 72 0% APR and over 12 grand off of it. It all worked out for the better and maybe some day down the road when I am in my 60s... I will get me another sportscar. But all I can say is it will be something with a supercharger and tons of HP to play with.

 

Wow that is horrible but it seems like your dealership took care of you!

 

That's amazing! Congratulations on the new truck.