What can I do to make the s550 GT’s shift smoother? I got a 2017 Mustang GT performance Package and It’s such a stiff car to shift gears with. Especially with the stock clutch assist spring. I’ve upgraded to the steeda spring but that 1st - 2nd shift is very notchy. Is there anything I can do like oil change/trans mission oil? Also it sounds like a bunch of metal is shaking or grumbling as i’m shifting gears. I don’t drive my car harsh I drive respectively (sometimes.. now that I got a roush catback i’m always flooring it)