Used flexplate reinforcing ring, Ford called it a fly wheel reinforcing plate. Fits all Ford small block engines including 260, 289, 302, 351W and 351C. Strengthens the area where the automatic transmission flex plate mounts to the crankshaft. This is not just a ring with 6 holes in it, it is indexed specifically for the flex plate and only goes on one specific way. It has to be indexed because of the weight on the flex plate. Just under 4 inches in diameter. Special bolts not included, but available.
Fits: 260, 289, 302, 351W, 351C all with C4 or FMX transmissions.
Replaces Ford part # C2OZ-6A366-A