This part replaces the Pinion Flange yolk on the 2015-2025 Mustang 8.8 IRS Differential saving weight, increasing serviceability, and using a stronger proven 1350 U joint design which eliminates the rear driveshaft yolk. (essentially converting the 8.8 to a 9" style pinion yolk) This is the design choice of ALL motorsports (drag, road racing etc)
The Yolk is constructed of forged Steel and capable of handling any HP you can throw at it! Includes ARP Bolts and Mark Williams Billet Caps.
Installation does not require differential removal and so installation can be completed in the vehicle. A new Factory Pinion Nut will be needed.
Does not fit Standard 1987-2014 8.8 Differentials/pinion gears.
