Complete differential assemblies for the OEM automotive industry and other light vehicle applications

Neapco is a leading global provider and large volume supplier of complete differential assemblies for automotive and other light vehicle applications. With 40 years' experience in the production of differential components, our teams have unparalleled expertise in the technical intricacies of light-vehicle differentials.

Neapco uses lean machining and assembly processes to produce high-value differential assemblies and components. Continually optimized to increase efficiency and throughput, our state-of-the-art assembly lines can produce 2 million differentials per year in all common varieties, including chamber and ball designs.

Our design and manufacturing processes emphasize integration capability and standardization to deliver the greatest customer choice and value. Integration capability is enhanced through flexibility in interface dimensions such as:

  • Distance between bearings and their diameter
  • Flange position and diameter
  • Driveshaft connections, e.g., splines, sealed differentials, flanges and polygons

Neapco's standardized chamber and ball designs increase manufacturing and cost efficiencies for the one- and two-piece differentials manufactured for front wheel drive (FWD) and all wheel drive (AWD) applications.

Features and Benefits

  • In-house tool shop — Fast and flexible response to customer requests.
  • Flexible machining centers for interface dimensions — Easy integration into new projects
  • Integrated design, engineering and manufacturing of bevel gears, including rough parts, calibration matrices, machining fixtures and gauges — Quick implementation and solid change management
  • Standardized bevel gear sets — Increases manufacturing efficiencies
  • Bevel gears with involute splines manufactured by an orbital forming calibration process — Top strength and smooth rolling motion
  • Hardening and tempering capability of nodular iron — Targets improvements in material hardness and strength


Neapco Light Vehicles Differential
Differential Assembly FWD
Neapco Light Vehicles Differential
Differential Assembly FWD
Neapco Light Vehicles Differential
Differential Housing
Neapco Light Vehicles Differential
Differential Assembly AWD