• DS404 Eaton Dana-Spicer forward differential | DPE remanufactured heavy-duty axle assembly | Class 8 truck application
  • DS404 Eaton Dana-Spicer forward differential | DPE remanufactured heavy-duty axle assembly | side profile view
  • DS404 Eaton Dana-Spicer forward differential | DPE remanufactured axle assembly | rear angle view
  • DS404 Eaton Dana-Spicer forward differential | side view showing Spicer 129128 side adjuster | remanufactured by DPE
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Quote Only, Call For Price - 419-522-3320

DS404 Front (Forward) Differential | Remanufactured Eaton Dana-Spicer for Class 8 Trucks, *DPE REMAN - *EXCHANGE

DS404 Front (Forward) Differential | Remanufactured Eaton Dana-Spicer for Class 8 Trucks, *DPE REMAN - *EXCHANGE

DS404 Front (Forward) Remanufactured Differential — Eaton Dana-Spicer

The DS404 forward (front) differential is a proven power-divider for Class 8 tandem axles. Each unit is professionally remanufactured by DPE with high-quality components and set up for correct gear mesh, backlash, and bearing preload for long, reliable service.

Quick Specs

Position: Forward rear (power divider)  |  Axle Family: Dana D344 / D404 / D405 / D454  |  GAWR: 40,000 lb
Ring Gear: Hypoid, 15.4–15.7 in OD  |  Axle Shaft Splines: 41  |  Weight: 450 lb
Side Gear P/N: 127368  |  Pinion Nut P/N: 126182  |  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 Spec & Approvals

Recommendation: 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 warranty
  • Tech support from DPE during install and initial run-in

Core Exchange Policy

  • Core condition: Like-for-like, complete, and rebuildable
  • Deductions may apply for: Cracked housings; burnt/missing internals; low-lube or water damage; non-matching cores
  • 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 availability: 419-522-3320

Heavy-Duty Solutions — Built to Perform. Trusted to Last.

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THE REMAN CENTER. INC. dba Discount Parts Exchange

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