2015-2018 MUSTANG SUPER 8.8" IRS DIFFERENTIAL 3.55

This part is no longer available.
  • This part has been replaced by M-4001-88355A
  • Loaded differential housing for 2015-2018 Mustang IRS
  • Fits 2015-2018 Mustang GT and V-6 with manual transmission
  • Iron housing with aluminum cover 
  • Includes 3.55:1 ratio gear set M-4209-88355A and Traction-Lok differential M-4204-M 
  • Original Equipment on 2015-2017 Mustang GT  
  • Custom calibration required for speedometer and shift corrections  
  • Automatic transmission requires Pinion Flange Kit M-4851-M8A
Part Type
D-Line: Axle Components
Warranty Availability
Not Available
Packaged Dimensions
14" x 15" x 32.5
Packaged Weight
126 lb(s)
UPC Code
756122002735
Catalog Page Number
28
Country of Origin
United States