Southwest Wheel 3,500 lbs Trailer Axle Electric Brake Kit

In this review of the Southwest Wheel 3,500 lbs trailer axle electric brake kit, the bottom line is simple: this kit is best for DIY trailer owners and small haulers who need a complete, QAI tested set of self-adjusting electric brakes that fit common axles. The reviewer found the kit most appealing because it bundles TruRyde 10' in x 2 1/4' in hubs/drums and matching self-adjusting backing plates with bearings, seals and hardware, so buyers can replace an axle's braking assembly in one go rather than chasing parts.

Key Features

• Complete kit: Includes paired 10' in x 2 1/4' in TruRyde hubs and drums plus the self-adjusting backing plates to simplify a full brake replacement.
• Hardware included: Comes with bearings, seals, lug nuts, open and closed grease caps, cotter pins, spindle washers, tang washers and spindle nuts so installation requires fewer extra trips to the parts store.
• Compatibility: Works with Al-Ko, Dexter, Lippert and Quality Trailer axles, making it suitable for many common trailer platforms.
• Manufacturing standard: TruRyde parts are built in an ISO/TS-16949 registered factory, which supports consistent part quality and fit.
• Spindle fit: Built for 84 spindles with a 4-hole brake flange using inner bearing L68149 and outer bearing L44649 for correct fitment on compatible spindles.

Who It's For

This kit is aimed at owners of small trailers and utility trailers who need a full electric brake solution that includes hubs, drums, and self-adjusting backing plates. It is especially useful for people who prefer buying a matched set so components are correctly paired and certified rather than assembling parts piecemeal.

Those who should look elsewhere include owners with nonstandard spindle sizes or unusual bolt patterns, and buyers who need metric or alternative castle nut sizes not included in the kit. Several customers reported occasional missing parts or mismatched castle nuts, so installers who expect every fastener to be perfect out of the box should verify contents before beginning work.

Pros & Cons

Pros

• Complete matched kit reduces compatibility guesswork and speeds up replacement jobs.
• Self-adjusting backing plates improve braking consistency without frequent manual adjustments.
• Quality manufacturing standard and QAI testing offer confidence in durability and fit.

Cons

• Occasional reports of missing hardware or wrong castle nut sizes mean you should inventory parts before installation.

Specifications

Our Verdict

The Southwest Wheel 3,500 lbs kit is a practical, value-oriented choice for trailer owners who want a matched, self-adjusting electric brake assembly that fits common axle brands and 84 spindles. Its main value is convenience and compatibility, backed by ISO/TS manufacturing and QAI testing; just inspect included hardware before installation to avoid delays from occasional missing or mis-sized fasteners.

Frequently Asked Questions

Will this kit fit my axle?
It fits axles that use 84 spindles with a 4-hole brake flange and a 5 on 4.5' in bolt circle; verify your spindle and flange type before ordering.

Are all necessary parts included?
The kit ships with bearings, seals, lug nuts, grease caps and mounting hardware, but a few customers reported missing parts so inspect the box on arrival.

Does the kit require frequent brake adjustment?
The backing plates are self-adjusting, which reduces the need for manual brake adjustments during normal use.