Let us get a prespective on this. Spring cost $400+, labor at $85/$100 per hour on independent suspension say 2 hours max = $175 and a for way alignment and stance balance (4 corners weigh the same) at 300 gets us to $875. I would think the shop is pretty close, Depends on the spring kit...
According to Discount Tire and Les Schuab computer 18" will not fit. Either over the Brimbo caliper, the offset or the bolt centers. Many wheels that fit for years are now out. Manufacturers. Having to retool. Sad. I had light weight wheels/race tires that no longer work. Oh well. They...
What does the clutch feel? If you sheared off the facing it would allow you to shift but not engage. If you bent the fingers then the clutch pedal would be floppy.
My son lives in Mesa, 2014 GT, and after talking to my tire supplier (Discount Tire) he said go to their store down there and get what ever you want. Plus size that fits is a 315x30-19 Bridgestone 050A that is almost exact height as PP fitment. Wonderful tire I used on my 2011 Shelby track car.
Sticky tires
When you say sticky, are you street racing, drag racing, auto crossing or track driving?
From past experience with the FR500 and 2011 Shelby on the track we used Bridgestone 050A tires, tread wear factor 140. Any stickier and you go to Hoosier's. Good lasting tire even at...
Driveline vibration
My 2915 GT PP has the same drive shaft. At 1400 miles a vibration started that you could barely hear or feel. At 1800 miles it could be felt in the seat and starting wheel. Tech agreed with me it was the drive shaft. 2 days later it was replaced and the vibration is...
Vibration at 50 to 70
I was experiencing this and took my 2015 GT 6 spd. to my dealer. The technician agreed the problem was the driveshaft. 2 days later, with a new shaft installed the car is very smooth.