Aluminum Drive shaft and CHE K-brace installed

I had ford do the 30,000 mile maintenance on my car and also had them install a CHE K-brace with torque limiters and Shaftmaster aluminum drive shaft. Just picked up the car and the car is much more solid. Also she accelerates a lot harder with the light weight drive shaft. Had her up to 80 with no vibrations. I would say these are 2 must have mods on the s197. The K-brace with torque limiters stopped most of the slop in these cars and make shifting very smooth.