The Differential Gear Housing, or Diff Case, encloses and supports the internal gears, bearings, and shafts of the differential assembly.
Built from high-strength, heat-treated metal, this housing is engineered to withstand heavy torque loads, continuous vibration, and harsh operating conditions. Its precision-machined internal surfaces ensure accurate alignment of gears and bearings, promoting smooth rotation and balanced power distribution between the wheels. The rigid construction minimizes flexing, helping maintain long-term efficiency and durability of the drivetrain.
By providing a strong and stable structure for all differential components, the diff case enhances reliability, reduces noise, and supports consistent traction. It plays a crucial role in ensuring smooth power transfer and long-lasting performance in heavy-duty commercial vehicles.
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 15.017 | 3128, 2523, 2528 | A4003530801 | Differential Gear Housing / Diff Case – Heavy Duty |
It houses and supports gears and bearings, ensuring accurate alignment and smooth differential operation.
When cracked, worn, distorted, or causing misalignment and noise.