| Part | Name | Releases |
|---|
| C0256A | Center differential box | |
| E0146B | Differential Housing X6/X7 | |
| E2101 | Center differential support X7 | |
| E2143B | X8 Center Differential Support | |
| E2160-B | Differential housing + chassis reinforcement MBX8 Eco | |
| E2160A | Differential housing + frame reinforcement | |
| E2201A | Differential Cover | |
| E2203 | Differential Ring Gear 42T X7 | |
| E2232C | HTD (High Traction Diff) Differential Housing | |
| E2234A | Center Spur Gear 44T HTD (High Traction Diff) | |
| E2235B | Spur gear Central 46T HTD (High Traction Diff) | |
| E2236 | Center Spur Gear 48T HTD (High Traction Diff) | |
| E2238A | Differential gear 10T HTD (x4) MBX8 | |
| E2240A | HTD (High Traction Diff) Differential Cross Shafts | |
| E2245-B | Complete HT Central Differential MBX8R | |
| E2248 | Front or Rear Differential 42T | |
| E2251 | Center Differential Set 47T | |
| E2252B | Straight Cut Bevel Gear 12T | |
| E2253C | Straight Cut Bevel Gear 13T | |
| E2254A | Front/Rear Bevel Differential Gears 42T HTD | |
| E2255B | Spur gear 44T HTD Bevel Differentials | |
| E2256 | Front/Rear Differential 42T HTD | |
| E2256-B | HT Complete Front or Rear Differential 42T MBX8R | |
| E2257 | Front/Rear Differential 44T | |
| E2257-B | HT Complete Front or Rear Differential 44T MBX8R | |
| E2258B | Spur gear Central 44T HTD (High Traction Diff) | |
| E2259C | Spur gear Central 46T HTD (High Traction Diff) | |
| E2264B | Spur gear Differential 46T MBX8 | |
| E2271 | Differential Pinion HT 20T (x2) MBX8R | |
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