Driveshaft issue leads to Mack recall

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A driveshaft issue has led Mack to recall over 20,000 of its trucks.A driveshaft issue has led Mack to recall over 20,000 of its trucks.

Mack Trucks has issued a safety recall which will impact over 20,000 of its vehicles.

The recall listed with the National Highway Traffic and Safety Administration (NHTSA) states that a driveshaft failure concern has led Mack to recall certain model year 2012-2015 Granite (GU), Pinnacle (CHU, CXU), TerraPro (LEU, MRU), and Titan (TD) and model year 2015 LR trucks manufactured Sept. 1, 2011 through April 30, 2014.

In a letter to NHTSA, Mack states that a “cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may loosen. Consequence: If the cap nut loosens and falls off, the yoke can separate from the axle input shaft and allow the drive shaft to disconnect, increasing the risk of a crash.”

The recall is expected to begin on April 15, 2016 and effects 20,741 Mack trucks. Mack will notify owners, and dealers will replace the cap nut. The input shaft threads will also be inspected for damage. Any damaged input shaft will be replaced. Repairs will be performed free of charge.

Owners may contact Mack customer service at 1-610-709-2131. Mack’s recall campaign number is SC0399. Owners may also contact the NHTSA Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to The NHTSA recall campaign number is 16V099000.