I put in the TransGo Shift Kit and have been driving for a few weeks. When I get a chance, I plan to go back to the old springs. It drove and shifted much better with the original springs.

I have a 2001 S80 T6 that runs great but when it gets really hot, it has issues shifting 2nd to 3rd. I put an oil cooler on and that practically eliminated it, but when I drive it for 45+ minutes in 90 degree heat I can feel it shift hard every now and then. When it is cool outside it shifts great. ...