Original Performance Pack Equipment.
Improve the low end torque and handling performance of your S550 Pony with a Ford Racing Torsen 3.73 Differential. This Ford Racing 3.73 Torsen IRS Differential Housing is the same exact original equipment that comes standard on Performance Pack equipped Mustangs.Pre-Loaded.
Ford Racing pre-installs a set of their 3.73 ratio gears and a T-2 Torsen differential into an iron IRS housing and tops it all off with an aluminum cover, so it's ready to install straight out of the box.Ford Racing T-2 Torsen Differential.
The included heavy duty Ford Racing T-2R Torsen 8.8" differential uses a worm gear friction system that features full-time torque-sensing and torque-biasing for maximize performance. Torque Sensing keeps power going to the ground during changing traction conditions, while Torque Bias factors how much torque the differential can send to the wheels depending on the available traction. This Torsen design is far superior to standard limited-slip differentials making it ideal for street, autocrossing, and road racing.Ford Racing 3.73.1 Gears.
The pre-loaded Ford Racing ring and pinion gears have a 3.73:1 gear ratio and 8.8" ring gear diameter. These gears are manufactured in the USA and feature a super strong forged construction with CNC cut & lapped gear teeth. They are completed in a black oxide finish for corrosion resistance.Required Upgrade.
The Ford Racing 3.73 Torsen IRS Differential will require reprogramming the vehicles computer for speedometer and shift point corrections. AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner
to reprogram the vehicles computer (ECU) for proper operation.Automatic Transmission Requirement.
Installation of this Loaded Torsen IRS Differential Housing on a S550 Mustang with an automatic transmission will require the Automatic IRS Pinion Flange Kit part# M-4851-M8A for proper installation.Application.
This Ford Racing 3.73 Loaded Torsen IRS Differential Housing is a direct fit upgrade replacement for 2015 to 2018 GT and V6 Mustangs. Designed for use with independent rear suspensions (IRS) and requires the use of 34 spline axles.