At a Glance
- SKU: 1448735
PRODUCT INFORMATION
Product Details
Trailer Suspension / Torsion Axle Systems
1750lb Dexter Torsion Half Axle Spindle - Driver Side (Left) 22° Down
High-clearance independent suspension half-axle featuring a #84 spindle and 22-degree down-angle trailing arm for custom utility and off-road trailer applications.
Part Number: 1448735 1,750 lb Capacity #84 Spindle (3.5K Class)
Overview
This #84 Spindle Torsion Half Axle is an ideal solution for specialized trailer builds requiring maximum ground clearance and independent wheel movement. Designed for the Driver's Side (Left), this unit replaces traditional leaf spring setups with internal rubber cords that provide a progressive rate of dampening. This design is particularly favored in off-road environments and for trailers with open centers, such as those carrying water tanks or low-slung cargo.
R&P Service Insight
Expert guidance for the installation and operation of independent torsion systems:
- Trailing Arm Orientation: The arm must always point toward the rear of the trailer to function correctly.
- Frame Integrity: Because torque is localized, ensure your trailer frame is reinforced at the mounting points.
- Precision Alignment: Use laser levels or string lines to ensure the spindle is perfectly perpendicular to the tongue.
R&P Knowledge Hub
Independent Suspension: Each wheel moves autonomously, preventing road shocks on one side from affecting the stability of the other.
Open Center Design: Eliminating the cross-member axle beam allows for custom chassis designs, drop-floors, and integrated storage solutions.
Installation Caution: Do NOT weld directly to the axle tube housing. High heat will permanently damage the internal rubber cords.
Performance Insight: The 22° Down angle provides a significant lift (approx. 3-4" over a 0° axle), making it the preferred choice for high-clearance off-road utility trailers.
Maintenance Guide
- Bearing Service: Repack bearings with high-quality grease every 12 months or 12,000 miles.
- Torque Check: Regularly verify mounting bolts and lug nuts, as independent vibrations can loosen hardware.
- Load Limit: Strictly adhere to the 1,750 lb per side limit to prevent "bottoming out" the rubber cords.
Cleaning & Care
Corrosion Prevention: Thoroughly rinse with fresh water after exposure to coastal air or salted winter roads.
Debris Removal: Periodically use a wire brush to clear dirt and rust from the spindle and 4-bolt brake flange.
Grease Safety: Use a degreaser if leakage occurs; grease on the hub face can migrate to the braking surface, causing failure.
Features
#84 Spindle Design
Standardized spindle fits 1-3/8" x 1-1/16" bearings, compatible with most 3,500 lb class trailer hubs.
22° Down Angle
The aggressive down-starting angle provides increased chassis height for better obstacle clearance.
Built-in Brake Flange
Standard 4-bolt flange is pre-welded, allowing for immediate installation of 10" electric or hydraulic brakes.
Rubber Cord Dampening
Integrated progressive rate rubber cords eliminate the need for noisy leaf springs and shackles.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 1448735 (Left Side) |
| Load Capacity | 1,750 lbs |
| Spindle Type | #84 (3.5K Class) |
| Starting Angle | 22° Down |
| Hub Pattern | 5 on 4.5" (Standard) |
| Brake Flange | 4-Bolt (Fits 10" Brakes) |
| Stub Length | 24 Inches |
| Weight | Approx. 49 lbs |
Fitment / Dimensions
| Measurement | Details |
|---|---|
| Tube Size | 2.5" to 3" Square Tubing |
| Arm Length | Approx. 6" Center-to-Center |
| Primary Application | Custom Off-Road & Utility Trailers |
| Orientation | Driver's Side / Left Only |
| Mounting Notes | Bolt-on Installation (Do not weld) |
Included Components
| Quantity | Item |
|---|---|
| 1 | 1,750 lb Torsion Half-Axle Assembly (Left Side) |
| 1 | Pre-welded #84 Spindle |
| 1 | Pre-welded 4-Bolt Brake Flange |
| Integrated | Rubber Cord Suspension Internals |
Final Verification: Ensure your frame is capable of handling the concentrated torque of a half-axle system. Verify that the 22-degree down angle provides the necessary clearance for your specific wheel and tire combo. Misalignment during installation by as little as 1/8" can result in rapid tire wear.
1448735 left side torsion half axle 1750 lbs 3500 lbs pair 22 down angle trailer suspension independent axle spindle 84 brake flange 5 on 4.5 hub pattern off road trailer parts
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