This companion flange features dual threaded bolt patterns with an M12-1.75mm thread specification and is designed for the Ford Rear 9.75″ differential. It has a spline count of 31 and a spline diameter of 1.343 inches. The hub diameter measures 1.812 inches, and it includes a thru hole of 1.640 inches with a pilot diameter of 2.000 inches.
The bolt circle diameter varies at 3.50 inches and 4.25 inches, providing flexibility for installation. It accommodates 8 bolt holes, and the distance from the face to the end is 1.955 inches, classifying it as light-duty (LD).
This pinion flange is compatible with the Ford part number F75Z-4851-AA and fits several applications for the Ford 9.75″ differential, including:
- Expedition: 1997 – 2003 (Rear)
- F150: 1997 – 2006 (Rear)
- Mark LT: 2006 (Rear)
- Navigator: 1998 – 2006 (Rear)
