2015-2018 MUSTANG SUPER 8.8" IRS LOADED DIFFERENTIAL HOUSING 3.55

This part is no longer available.
2015-2018 MUSTANG SUPER 8.8" IRS LOADED DIFFERENTIAL HOUSING 3.55
M-4001-88355A
Instruction Sheet
Not Available
  • Loaded differential housing for 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 2018 Mustang GT  
  • Custom calibration required for speedometer and shift corrections  
  • Automatic transmission requires Pinion Flange Kit M-4851-M8A 
Part Type
Driveline: Complete Axle Assy
Warranty Availability
Not Available
Package Dimensions
20.5" x 12.5" x 17"
Package Weight
106 lb(s)
UPC Code
756122009710
Country of Origin
United States