TRAILER AXLE COMPONENTS / SPINDLE ASSEMBLIES
Two (2) 3,500 lb Stub Axle Ends – 5 on 5" Bolt Pattern – Brake Flange – #84 Spindle
SKU: STUB-84FZ-550-H-X2
This listing includes two (2) weld-on stub axle spindle assemblies designed for standard 3,500 lb trailer axles. Each spindle features a 2" round weld base and integrated 4-bolt brake flange.
Large GM 5 on 5 Pattern
#84 Spindle Size
2" Round Weld Base
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Overview
Designed for 3,500 lb idler or brake applications, these stub ends feature an integrated 4-bolt brake flange, allowing for future conversion to electric trailer brakes. The hub pattern is 5 on 5" with 4-3/4" stud spacing (Large GM pattern). These are ideal for custom trailer fabrication or repairing bent/damaged axle ends.
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R&P Service Insight
Common service scenarios include damaged spindle threads, worn bearing surfaces, or bent axle ends from impact. Dimensional confirmation is required prior to installation.
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R&P Knowledge Hub
Function: Stub axle ends are used when fabricating or repairing a trailer axle assembly. The spindle supports the hub, bearings, and wheel.
Brake Readiness: The integrated 4-bolt brake flange provides mounting points for electric brake assemblies if added later.
Fitment Brands: Compatible with common axle brands including Dexter, AL-KO, Lippert, and Quality Trailer Axle.
Measurement Tip: Always verify the weld base diameter and tail shaft length to ensure a proper fit with your existing axle tube.
R&P Repair Insight
When replacing a spindle, ensure the axle tube is cut square and clean. Proper alignment during the welding process is critical to prevent premature tire wear and towing issues.
- Bearing Prep: Thoroughly pack the L44649 and L68149 bearings with high-quality axle grease before assembly.
- Seal Seating: Ensure 10-19 grease seals are seated flush to prevent leaks.
- Nut Adjustment: Tighten the 1" axle nut until the hub is snug, then back off slightly to allow for proper bearing play.
Features
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Integrated Brake Flanges
Standard 4-bolt pattern allows for easy addition of 10" electric or hydraulic brakes.
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Heavy Duty Construction
Rated for 3,500 lb capacity, providing durability for utility, boat, and equipment trailers.
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Universal Weld Base
2.00" Round base fits inside standard 2" Schedule 40 tubing for seamless fabrication.
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Complete Assembly Kit
Includes everything needed: hubs, bearings, seals, caps, and spindle hardware for both sides.
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Specifications
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Fitment / Application
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Kit Includes (2 Complete Sides)
IMPORTANT: Spindles must be professionally welded to axle tubing. Failure to ensure proper weld penetration and alignment can lead to axle failure. Always verify all bearing numbers and spindle dimensions against your existing setup before final installation.
Shop 3,500 lb Stub Axles
Looking for specific spindle parts or different bolt patterns? Search our inventory for individual components and other axle kits.
