Skip To Content

Specifications

The C385 DS404 Inter Axle Differential Assembly is a precision-built driveline component designed for tandem axle heavy-duty trucks. It plays a critical role in distributing torque evenly between forward and rear drive axles, helping maintain traction and reduce drivetrain stress. Manufactured using high-strength materials, this assembly is built to endure high torque loads, heavy hauling conditions, and extended mileage demands. Ideal for vocational, construction, and long-haul applications, the C385 ensures smooth power transfer, minimized wear, and optimal differential performance in demanding commercial trucking operations.
Weight
12.2

Compatibility

Freightliner Classic — 1995–2010

Freightliner Columbia — 2001–2010

Freightliner Cascadia — 2008–2015 (DS404 spec models)

Kenworth T800 — 1995–2023

Kenworth W900 — 1995–2023

Peterbilt 379 — 1987–2007

Peterbilt 389 — 2008–2023

International 9400i — 1998–2008

Alternative Part Numbers

  • Dana Spicer DS404
  • Eaton DS404
  • Meritor C385
  • Spicer 404IDA
  • Spicer C385

Related Parts

S&S Newstar S-C591 Diff & Pd Shift Fork
S&S TRUCK PARTS (NEWSTAR) Part No: C591
$85.70 View Part
S&S Newstar S-6894 Differential Gear Set
S&S TRUCK PARTS (NEWSTAR) Part No: S-6894
$682.72 View Part Contact Us
Gear Set for Differential (Ring & Pinion) 3.70 Ratio
S&S TRUCK PARTS (NEWSTAR) Part No: 8389
$494.00 View Part Contact Us
Remanufactured Carrier
Meritor Transmissions Part No: RD20145390
$3,627.03 View Part
Differential Mounting Adapter
OTC Tools Part No: OTC-553516
$727.85 View Part Contact Us

This website uses cookies to provide users the best possible experience. Learn more. Please also review our terms of use and terms of sale.