page_title: 10.5" Corporate 14 Bolt Differential
section_title: 10.5 AAM
hierarchical_section_title: 10.5" Corporate 14 Bolt Differential / 10.5 AAM
caption_attribution_description: English: 2011 Dodge Ram Power Wagon 10.5 AAM with Locker.
context_page_description: The 10.5” Corporate 14 Bolt Differential is a heavy duty differential found on many 1973-2013 Chevrolet and GMC trucks and SUVs, as well as certain versions of the Cadillac Escalade. Additionally, this differential is found on Chevrolet Express and GMC Savanna vans produced from 1973 to current day. Debuting in 1973, this differential is a full floating design with a ring gear diameter of 10.5 inches. As the name implies, this differential has 14 bolts holding on the differential cover. The ring gear is not held on with 14 bolts, but rather 12. The 14 bolt differential is a popular axle swap option for Jeep Wrangler owners, and is referred to as the "corporate" 14 bolt because of the odd nature of GM's corporate structure in the 1970s.
  Not to be confused with the GM 14-bolt 9 and 1/2 inch ring gear rear differential which has c clips to retain the axles unlike a free floating axle that the heavy duty big brother utilizes. The 9 and 1/2 inch is easily identified from the 10 and 1/2 inch by looking at the hub. If the hub protrudes through the center of the wheel, that indicates the more desirable 10.5 and 1/2 inch full floating rear axle.
context_section_description: 2500 3rd Generation Dodge trucks use a 10.5 AAM in all the V8 equipped trucks. Some early model Diesel and V10 trucks also used this axle.  Like the 11.5, this axle also uses a re-usable rubber gasket and looks similar to the 11.5 axle. The Ram Power Wagon also uses this axle with a locking differential.  2013 was the last model year that RAM 2500 and 3500 trucks were equipped with this axle.
caption: 2011 Dodge Ram Power Wagon 10.5 AAM with electric locking differential.
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