4R100

The E4OD was updated in 1998 and this new transmission was the last rendition of the C6. It was largely the same as the E40D, but with some changes to internal components to address durability concerns when put behind the ever increasingly powerful Powerstroke Diesel Engine. In 1999 it was fitted with a PTO for auxiliary equipment attached to heavy duty trucks. To follow Fords new naming schemes for its other transmissions, Ford renamed the E4OD the 4R100.