DS404 | Eaton Dana-Spicer Forward (Front) Differential — Remanufactured by DPE (40K GAWR)
The DS404 forward (front) differential is a proven power-divider for Class 8 tandem axles. Remanufactured in Mansfield, Ohio by DPE. Each unit is torn down, cleaned, inspected, and rebuilt to your exact ratio with new bearings, seals, and all critical wear components to ensure long, reliable service. Also referenced as DS-404 or DS404-FWD.
Pairs with the RS404 rear-rear differential to form a complete tandem set.
Summary
Professionally remanufactured DS404 forward carrier with integrated power divider. Rebuilt to your exact ratio. Sold on exchange.
Quick Specs
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Position: Forward rear (power divider)
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Axle Family: Dana D344 / D404 / D405 / D454
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GAWR: 40,000 lb
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Ring Gear: Hypoid, 15.4–15.7 in OD
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Axle Shaft Splines: 41
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Weight: ≈450 lb
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Side Gear P/N: 127368
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Pinion Nut P/N: 126182
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Axle Housing Fastener Kit P/N: 512087
Key Specs & Features
- Forward power divider – “front rear” tandem position
- Built for heavy duty – up to 40,000 lb GAWR
- Fully remanufactured carrier – cleaned, inspected, and rebuilt to spec
- Fitment – common in Class 8 highway & vocational applications
Available Gear Ratios & Spicer Part Numbers
| Ratio |
Current Kit P/N |
Current Ring (P/N, Teeth) |
Current Pinion (P/N, Teeth) |
Original Kit P/N |
| 2.64 |
211462 |
127387 (37) |
127439 (14) |
— |
| 2.85 |
211463 |
127388 (37) |
127440 (13) |
— |
| 2.93 |
509423 |
129532 (41) |
129531 (14) |
— |
| 3.08 |
513386 |
127388 (37) |
129716 (12) |
211464 |
| 3.25 |
513385 |
127389 (39) |
130120 (12) |
211465 |
| 3.36 |
513384 |
127388 (37) |
130121 (11) |
211466 |
| 3.42 |
504056 |
134327 (41) |
134328 (12) |
— |
| 3.55 |
513383 |
127389 (39) |
130122 (11) |
211467 |
| 3.70 |
513382 |
127388 (37) |
130123 (10) |
211468 |
| 3.90 |
513381 |
127389 (39) |
130124 (10) |
211469 |
| 4.11 |
513380 |
127388 (37) |
130125 (9) |
211470 |
| 4.33 |
513379 |
130201 (39) |
130126 (9) |
211471 |
| 4.63 |
513378 |
130196 (37) |
129733 (8) |
211472 |
| 4.88 |
513377 |
130197 (39) |
129735 (8) |
211473 |
| 5.29 |
513376 |
130196 (37) |
129816 (7) |
211474 |
| 5.57 |
513375 |
130197 (39) |
129820 (7) |
211475 |
| 6.17 |
513374 |
127390 (37) |
129843 (6) |
211476 |
| 6.50 |
511571 |
129736 (39) |
127454 (6) |
211477 |
| 7.17 |
511572 |
130178 (43) |
130177 (6) |
— |
Note: Availability varies. Please call to confirm ratio before ordering.
Lubricant Specification & Approvals
Recommended: Spicer FE 75W-90 synthetic gear lubricant (or equivalent).
Approvals/Specs: Dana SHAES 256 Rev E; Dana SHAES 429; API GL-5; API MT-1; SAE J2360 / MIL-PRF-2105E; Detroit DFS93K219.01; Mack GO-J Plus; Meritor O76-N; Navistar MPAPS B-6821.
Typical properties: SAE 75W-90; KV100 15.0 cSt; KV40 103 cSt; VI 152; Brookfield −40 °C ≈ 90,000 cP; Pour Point < −45 °C; Flash Point ≈ 215 °C.
What’s Included
- Remanufactured Eaton Dana-Spicer DS404 forward differential (power divider)
- 12-month, unlimited-mileage parts-only warranty
- Tech support from DPE during installation and initial run-in
Core Exchange Policy
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Condition: Like-for-like, complete, and rebuildable core
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Deductions may apply for: Cracked housings; burnt/missing internals; low-lube or water damage; non-matching cores
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Preparation: Core must be drained and palletized for pickup
Shipping Policy
- Ships via LTL motor freight to verified commercial addresses only
- No residential delivery — forklift or dock required at delivery
Image Disclaimer
Photos shown are representative; final appearance may vary by ratio and casting revision.
Warranty
DPE warrants this product against defects in materials and workmanship for 12 months from the date of shipment (parts only; no labor).
Location & Contact
Location: Mansfield, Ohio
Call for pricing and availability: 419-522-3320
Heavy-Duty Solutions | Built to Perform. Trusted to Last.
Reference Documentation
For detailed exploded-view diagrams, part numbers, and service data, download the official Spicer® Drive Axles AXIP-0200-32020 Illustrated Parts List covering the DS404 / D404 / D405 / D454 axle family.
📄 Download Spicer DS404 / D404 Illustrated Parts List (PDF)
