YR is right on a lot of cars, special the Mustangs and newer cars you have to modify the dash. I am afraid I will have to do that to my Challenger. With the lack of aftermarket support for a decent clutch for the new Challengers it's going to be what it's going to be. Did I tell you the duel disc clutches in the new Challengers really suck and are a big waste of time and money. If someone would come out with a single disc clutch it would save the syncros in that Tremec TR6060. The duel disc like to stick and crunch the syncros, you have to pull the trans and grease the input shaft so the disc's will slide.