I'm in the process of doing solid axle swap in my 03
Cobra now. I bought a Mach 1 rear end with 31 spline Moser axles and factory 3.55 gears. I'm changing out the pinion flange to the cobra pinion flange for a little more durability and while the shop has rear end opened up I was thinking about adding ford racing 3.73 gears. What do you guys think? Stay with 3.55's or go 3.73?
Cobra now. I bought a Mach 1 rear end with 31 spline Moser axles and factory 3.55 gears. I'm changing out the pinion flange to the cobra pinion flange for a little more durability and while the shop has rear end opened up I was thinking about adding ford racing 3.73 gears. What do you guys think? Stay with 3.55's or go 3.73?