3,500 LB TRAILER AXLE REPAIR / HUB & SPINDLE ASSEMBLY
3500 lb Stub Axle End Kit – 5 on 4.75 Bolt Pattern – Complete Hub & Spindle Assembly
SKU: STUB-84-5475-H
Complete stub axle end kit designed for 3,500 lb trailer axles. This all-in-one assembly allows you to replace a damaged spindle and rebuild one side of your axle with professional-grade components.
5 on 4.75" Bolt Pattern #84 Spindle (2" Round Base)
Overview This stub axle end kit is engineered for 3,500 lb capacity trailer axles utilizing the "Small GM" 5 on 4.75" bolt pattern. It provides a cost-effective solution for repairing a damaged spindle without requiring a full axle beam replacement. The kit includes everything needed for a full corner rebuild, including the spindle, idler hub, bearings, and mounting hardware. | R&P Service Insight When repairing a trailer axle, precision is safety. A stub axle allows for a targeted repair, but success depends entirely on matching your existing specs. -
Direct Repair: Replaces damaged spindles on 3.5k axles.
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Small GM Pattern: Specifically 5 on 4.75" (verify against the common 5 on 4.5").
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Safety First: Re-grease bearings annually and check lug nut torque after the first 50 miles.
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R&P Knowledge Hub
Compatibility: Designed for standard 3,500 lb idler axles. The spindle is a #84 style with a 2" diameter round base.
Bolt Pattern: Features the 5 on 4.75" pattern, often used to match specific automotive-style wheels.
Installation Notes: Welding is required to attach the stub spindle to the axle tube. Ensure professional alignment to prevent uneven tire wear.
Performance Insight: Using a complete kit ensures that the bearing races, seals, and spindle surfaces are perfectly matched for maximum longevity and heat dissipation.
R&P Repair Insight
Before starting your repair, confirm these four critical measurements to ensure a perfect fit:
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Bearing Numbers: This kit uses L68149 (inner) and L44649 (outer).
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Seal Diameter: Uses a 10-19 seal (1.719" ID).
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Base Size: Confirm your axle tube can accept the 2" round spindle base.
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Pattern Check: Measure from the center of one stud to the back of the third stud to confirm the 4.75" spacing.
| Complete Rebuild Kit Includes everything from the spindle and hub to the bearings, seal, and lug nuts for a total one-side replacement. | #84 Spindle Profile Features a 2" round base and 3.37" tail shaft, standard for the most common 3,500 lb axle configurations. |
| Pre-Pressed Races The idler hub comes with bearing races already pressed in, significantly simplifying the installation process. | Small GM Bolt Pattern Hard-to-find 5 on 4.75" pattern allows for specialized wheel fitment on standard 3.5k trailer axles. |
| Specifications
| Specification | Detail | | Part Number | STUB-84-5475-H | | Axle Rating | 3,500 lb | | Bolt Pattern | 5 on 4.75" | | Spindle Style | #84 (2" Round Base) | | Inner Bearing | L68149 | | Outer Bearing | L44649 | | Seal | 10-19 (1.719" ID) |
| Fitment / Application
| Category | Details | | Primary Use | 3.5k Axle Repair | | Axle Type | Idler Axles (Non-Braking) | | Base Fitment | 2" Round Tubing | | Compatibility | Commonly used on Utility, Boat, and Snowmobile trailers. |
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| Quantity | Item Description |
| 1 |
#84 Spindle (SP-20084NWC) with 1" Threaded Nut/Washer |
| 1 |
5 on 4.75" Idler Hub with Pre-installed Races |
| 1 |
Inner Bearing (L68149) & Outer Bearing (L44649) |
| 1 |
Double Lip Grease Seal (10-19) |
| 1 |
1.98" Dust Cap |
| 5 |
1/2"-20 Lug Nuts |
Verification Required: Stub axle installation involves welding and precise alignment. Always verify bearing numbers and bolt patterns before beginning installation. R&P Carriages is not responsible for improper installation or misidentification of existing axle components.
View All 3500 lb Stub Axle Options Need a different bolt pattern or spindle size? Explore our full range of replacement spindles and hub assemblies to get your trailer back on the road safely.
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