So I just had 3.55 gears installed on my GT to replace the 3.73. The installer is a retired NASCAR crew chief and was once crew chief of the year. He let his mechanic do the heavy lifting then he did the fine tuning and shimming. $611 install plus my parts from Ford Racing. (and he had to drop my Fays2 out of the way and reset it)
I picked the car up today and voila; zero driveline slop. What the heck? I called him up and said where did the driveline slop go? All you did was put in new gears and I assumed the slop was just part of owning the Mustang. He said the gears were built sloppy from the manufacturer and not unusual with this Ford rear.
Then he told me he left things just a little loose for my track use so the rear end would get less hot. Loose? I am loving his loose. The jerking is gone and shifting is far quicker and smoother (old MGW still). Feels like a darn BMW driveline or better. Just snick, snick through the gears. I tried to get the car to do some clunking but none to be found.
I picked the car up today and voila; zero driveline slop. What the heck? I called him up and said where did the driveline slop go? All you did was put in new gears and I assumed the slop was just part of owning the Mustang. He said the gears were built sloppy from the manufacturer and not unusual with this Ford rear.
Then he told me he left things just a little loose for my track use so the rear end would get less hot. Loose? I am loving his loose. The jerking is gone and shifting is far quicker and smoother (old MGW still). Feels like a darn BMW driveline or better. Just snick, snick through the gears. I tried to get the car to do some clunking but none to be found.