New AAM Gear Sets for 9.25” Ram and GM Front Axles

Perfect Answer When Modifying Trucks for More Torque

Unnamed Detroit – August 26, 2015 – American Axle & Manufacturing (AAM), a leading manufacturer of axle components, driveshaft components and repair kits for OE vehicles, has made available new 4.56 and 5.13 ratio ring and pinion gear sets for the Ram and GM 9.25” front axles.

“These new gear sets are perfect for truck owners who want to upfit their four wheel drive setup with bigger tires, mudders and much more,” said Pat Angst, senior manager, AAM Aftermarket. “These gear sets provide an increase in torque that truck modifiers are looking for.”

AAM part #40146855 is a 4.56 gear set for the 2007-2013.5 Ram 9.25” axle, AAM part #40146853 is a 4.56 gear set for the 2013.5 and newer Ram 9.25” axle, and AAM part #400244878 is a 4.56 gear set for the 1988 to current GM 9.25” axle. The 5.13 gear set for 1988 to current GM 9.25” axle is AAM part #40136007.

AAM says these ratios will match up to the AAM 11.5” rear axles offered in the Ram and GM truck series. In addition, ring and pinion gear sets in the 11.5” rear GM and Ram axles that match these front axle gear sets are AAM part# 4005988 (4.56 Ram and GM 11.5” rear axle), and AAM part# 40030646 (5.13 GM 11.5” rear axle).

AAM parts are the built to the same OEM production specifications that many shops have come to demand when installing replacement parts. AAM parts fit right, install right and perform right the first time. For more information and to find a local distributor, visit, call 313-758-4176, or email

About AAM Aftermarket
AAM Aftermarket provides its customers with high quality, reliability, durability and performance in every aftermarket part it sells. AAM designs, engineers, tests and validates components to meet the same exacting specifications as the parts that they replace.

About AAM
AAM (NYSE: AXL) is a world leader in the manufacture, engineering, design and validation of driveline and drivetrain systems and related components and modules, chassis systems and metal-formed products for light trucks, sport utility vehicles, passenger cars and crossover vehicles and commercial vehicles. In addition to locations in the United States (Indiana, Michigan, Ohio, and Pennsylvania), AAM also has offices or facilities in Brazil, China, Germany, India, Japan, Luxembourg, Mexico, Poland, Scotland, South Korea, Sweden and Thailand. For more information on AAM, please visit

The post New AAM Gear Sets for 9.25” Ram and GM Front Axles appeared first on RockCrawler 4x4 and Offroad Magazine.

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