to the aluminum driveshaft? I swapped over to one last year and I noticed quicker response and a smoother cruise as well, but that could be due to a center bearing starting to wear out.
1993 Nissan 300ZX Slicktop 1992 Nissan Skyline GT-R Gunmetal Gray - Long Live the Z and Godzirra! - "Love cars. Love people. Love life." - Mr. K.