MUSTANG SUPER 8.8" IRS LOADED DIFFERENTIAL HOUSING 3.55
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ATTENTION:This part is intended as a replacement part for use only in the application(s) identified in the product description. Installation of this part in a vehicle for which it is not intended may violate U.S. and Canadian laws and regulations related to motor vehicle emissions.
Loaded differential housing for Mustang IRS
Fits 2018-2023 Mustang
- Fits 2015-2017 Mustang (see technical notes below)
Iron housing with aluminum cover
Includes 3.55:1 ratio gear set M-4209-88355A and Traction-Lok differential M-4204-M
Custom calibration required for speedometer and shift corrections
- Original Equipment on 2019 Mustang GT
Note-on 2015-2017 Mustang, pinion flange change may be necessary; comes with pinion flange with 93mm bolt circle and 110mm driveshaft pilot installed. For applications that require 95mm bolt circle and 113mm driveshaft pilot, use FR3Z-4851-B pinion flange, available through Ford dealer
Driveline: Complete Axle Assy
21" x 13" x 17"
Country of Origin