23S49: Super Duty (2023) Rear Axle Shaft Recall

The left rear-axle shaft may break due to being manufactured without properly completing the heat treatment process. This could result in a loss of motion and inability to hold the vehicle in park.

The supplier entered an incorrect process parameter into one of the machines performing electromagnetic induction heat treatment of the left rear-axle shafts.

Owners will be notified by mail and instructed to take their vehicle to a Ford Dealer or Lincoln Retailer to have the left rear-axle shaft inspected. Those with a suspect date code will be replaced.

The driver may first hear a noise from the rear-axle or experience power loss when the vehicle is in two-wheel drive. If this happens on a vehicle equipped with four-wheel drive, shifting into four-wheel drive will restore mobility.

F-250 and F-350 Super Duty trucks built between March 20, 2023, and August 21, 2023, equipped with single rear wheels and a 10.5-inch rear-axle shaft.

We will begin sending letters out to customers in late October.

No, customers will not be charged for service.