i'm going to swap out my 3.23 gears for a set of 3.73's, is it worth doing or should i go with the 4.10 ratio? also does anyone know the correct mph for 6th gear with the 3.23, 3.73 and the 4.10? and my last question is where is the best supplier for the ring gear,pinion,master install kit,shims and ring gear bolts?? any help would be welcomed.

 

Unless the cars been changed before the manuals came with 3:42's so the difference would just be very little. I would go with the 4:10's for sure.

 

If your going from 3.23's to3.73's you'll notice the difference. From someone who has 3.23's with there m6 right now and driving an m6 with 3.73's, you can totally feel the difference.