Stub Axle End Kit – 3,500 lb – 5 on 4.5 Bolt Pattern – With Brake Flange
A complete #84 spindle section replacement kit for 3,500 lb trailer axles. Designed for utility and cargo trailers, this kit includes a spindle with pre-attached brake flange and all necessary hub hardware.
Overview
This R&P Carriages Stub Axle End Kit is a high-quality replacement solution designed for light-duty utility or cargo trailers where a damaged spindle section needs to be cut and replaced. Featuring a standard #84 spindle with a 2" round base and an integrated brake flange, this kit provides a complete spindle section replacement that allows for the future addition of electric or hydraulic brakes.
R&P Service Insight
A stub axle end is welded to an existing axle tube to restore structural integrity. The spindle supports the hub assembly and provides critical mounting points for bearings and grease seals.
- Critical Alignment: Proper alignment during the welding process is essential to prevent premature bearing wear and tracking issues.
- Versatile Design: The pre-attached brake flange makes it easy to upgrade to a braking system later without replacing the entire axle.
- Professional Install: All components ship loose and require professional assembly and certified welding for safety.
R&P Knowledge Hub
Compatibility: Designed for standard 3,500 lb axle tubes requiring a 2.00" diameter spindle base.
Vehicle / System Fit: Common on Jeep, Ford, and many utility/cargo trailers using the 5 on 4.5" bolt pattern.
Installation Notes: Verify your spindle type (#84), bearing numbers (L68149/L44649), and bolt pattern before ordering. Ensure components are lubricated with high-quality wheel bearing grease.
Performance Insight: The use of industry-standard bearings ensures long-term parts availability and reliable heat dissipation during travel.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: References to Ford, Jeep, or utility trailer platforms describe compatibility and bolt pattern style only where dimensions and mounting points match.
What This Means: This kit is a curated R&P Carriages aftermarket service assembly designed to meet or match standard 3.5k axle specifications.
Before Ordering: Please verify the 2" base diameter of your existing axle tube and the specific bearing IDs (1-3/8" and 1-1/16") to ensure a proper fit.
R&P Repair Insight
Spindle failure often occurs due to bearing overheating or impact. When replacing a stub end, focusing on the weld penetration and the perpendicularity of the spindle is the difference between a smooth-towing trailer and a "tire-eater."
- Check 1: Confirm your axle tube ID matches the 2.00" spindle base.
- Check 2: Ensure the spindle is square to the axle tube before final welding.
- Check 3: Always seat bearings and seals fully to prevent grease leaks and hub play.
Features
Standard #84 Spindle
Features a 2.00" round base designed to fit seamlessly into standard 3.5k axle tubes for a clean weld.
Integrated Brake Flange
Pre-attached 4-bolt flange allows for immediate or future installation of 10" electric or hydraulic brakes.
Complete Hub Assembly
Includes an idler hub with a 5 on 4.5" bolt pattern, the most common configuration for 3,500 lb applications.
Premium Bearings & Hardware
Comes with L68149/L44649 bearings, grease seal, dust cap, and spindle nut for a total rebuild.
Specifications
| Specification | Detail |
|---|---|
| Part Number | STUB-84-545-H |
| Brand | R&P Carriages |
| Axle Rating | 3,500 lb |
| Spindle Type | #84 with Brake Flange |
| Spindle Base | 2.00" Diameter |
| Inner Bearing | L68149 (1-3/8" ID) |
| Outer Bearing | L44649 (1-1/16" ID) |
| Grease Seal | 10-19 (1-3/4" ID) |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | 3.5k Trailer Axles |
| Primary Fit | Utility & Cargo Trailers |
| Bolt Pattern | 5 on 4.5" (Standard) |
| Notes | Commonly found on Ford/Jeep style hubs. Requires welding to axle tube. |
Included Components
| Quantity | Item |
|---|---|
| 1 | SP-20084NWC Spindle (#84, 2" base) |
| 1 | 3,500 lb Idler Hub (5 on 4.5") |
| 1 Pair | L68149 Inner & L44649 Outer Bearings |
| 1 | 10-19 Grease Seal (1-3/4" ID) |
| 1 Set | 1.98" Dust Cap, Axle Nut, Washer & Cotter Pin |
