N400-FR | Dana N-400 Forward Rear Differential with Locking Power Divider | Remanufactured – Exchange Required

Remanufactured Dana N-400 Forward Rear Differential w/ Locking Power Divider

N400 | Dana N-400 Forward Rear Differential — Remanufactured by DPE
Built for Class 8 International/Navistar trucks, the N-400 forward rear (tandem) carrier delivers dependable traction with an air-engaged locking power divider (inter-axle lock). This unit does not include left/right axle lockers. Each carrier is disassembled, cleaned, inspected, and rebuilt to spec using quality OEM/aftermarket components, then set to your requested ratio and verified for seal integrity, backlash, and gear mesh.

Quick Specs

• Model: Dana N-400 (Forward Rear Tandem)
• Application: International / Navistar (Class 8)
• Traction: Locking power divider (air-engaged); No axle shaft lockers
• Axle Shaft Splines: 39 or 41 (verify before ordering)
• Ratio Options: 3.06 to 6.14 (see table below)
• Approx. Weight: ~475 lb carrier assembly
• Condition: Remanufactured exchange (like-for-like core required)
• Common OE Codes: International 514-GDCF / Code 14GDC

Why Choose DPE

• Built to spec — ratio set to order; backlash/mesh/seals verified
• Heavy-duty durability — ideal for on highway applications
• Straightforward install — painted, tagged, and prepped for drop-in
• Real support — tech help from DPE during install and initial run-in

Gear Ratio Options & Part Numbers

Confirm ratio and spline count prior to ordering.

Casting & Assembly IDs

• Front Case: 401CB100
• Carrier Cap: 401CP100
• Rear Case: 401CF100
• Cap & Carrier (Main Case): 401CF108
• Finished Carrier Assembly: Dana 401CS104-X

Reference Documentation

For complete part-number listings and component diagrams, download the official Spicer® Drive Axles AXIP-4001 Illustrated Parts List covering the Dana N400 / N401 / N402 tandem drive axle family.
📄 Download Spicer N400 / N401 / N402 Illustrated Parts List (PDF)

Includes carrier-assembly diagrams, ring-and-pinion data, and differential component identification for Spicer N400-series axles.

What’s Included

• Complete remanufactured N-400 forward rear carrier set to your requested ratio
• Locking power divider (inter-axle lock) — air-engaged
  
• Painted & tagged for installation
• Tech support from DPE during install & initial run-in

Detroit Locker / No-Spin Options

Traction upgrades available for the N-400 forward rear. Verify spline size before ordering:

• 306S-98 — 2.00" (39-spline)
• 306S-100 — 2.100" (41-spline)

Core Exchange Policy

• Core required: like-for-like, complete, and rebuildable
• Possible deductions for cracked housings, burnt/missing internals, water or low-lube damage, or mismatched units
• Return prep: core must be drained and palletized for pickup

Shipping

• Method: LTL motor freight to verified commercial addresses
• Requirements: Forklift or loading dock; residential delivery not available
• Liftgate: Available by request (additional charge may apply)

Order & Support

Call for pricing & availability: 419-522-3320
Have your axle gear spline count (39 / 41) ready to speed things up.

Notes

• Photos: Representative N-400 carriers from our inventory; final appearance may vary by ratio, yoke, and casting revision
• Compatibility: Often referenced as International 514-GDCF / Code 14GDC
• Location: Built in Mansfield, Ohio

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