Mack Powertrain
Rear Axles
Mack Rear Axles
For more than a century Mack Trucks has built the trucks and components that have helped build America. So nobody knows more about how a heavy-duty rear axle needs to perform than Mack. Mack axles deliver more reliability, require low maintenance and minimize unexpected downtime. Mack axles are the product of innovative engineering and a drive to continuously improve.
The S40 is an ideal choice for highway applications, made from fabricated steel to effortlessly handle heavy loads from 38,000 lbs. to 40,000 lbs. The S440 is engineered as a lighter alternative for heavy-duty rear axle use, while the S462 workhorse, premium drive axle is made of cast ductile iron and carries loads reaching 46,000 lbs.
The most current available rear axles are presented on the following spec sheets: S38R, S52, SB38, S582, S40, S652, S440, RA23R, S462 and RA30.
