In high horsepower applications it is not uncommon to see the overdrive planet housing break, this is especially true during instances of rapid loading and unloading of the suspension. This billet overdrive planetary housing for E4OD and 4R100 helps prevent vehicular failure, so there are no more exploding parts. Pinion staking pins are supplied, no welding required.
For 4R100 transmissions only: this overdrive planet will only fit 7.3L Super Duty trucks with 4R100 transmissions. Please verify your truck's transmission before ordering.