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RGP Tandem Axle Equalizer & Shackle Kit — 7-3/4″ Curved Equalizers, 2-5/8″ Straps, 46 Pieces


Regular price $83.79 USD
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Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received. 

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

This brake assembly fits most standard 7,000 lb trailer axles that use 12" × 2" electric brakes with a 5-bolt mounting flange. Please verify your axle rating and brake dimensions before ordering. If you're unsure, send us your axle tag or hub information and we'll help confirm compatibility.
Yes. It is compatible with many standard Dexter, Lippert, Rockwell American, AL-KO, and other 7,000 lb trailer axles that use a standard 12" × 2" brake assembly. Always verify your axle specifications before purchasing.
Yes. This is a self-adjusting electric brake assembly, which automatically maintains proper brake shoe clearance during normal operation. This reduces maintenance and helps provide consistent braking performance.

Product Description:

Replace worn equalizers, shackle straps, and suspension hardware with this RGP 46-piece tandem axle kit. Designed for compatible trailers using 1-3/4" wide double-eye leaf springs, it includes two 7-3/4" curved equalizers, eight shackle straps, eight nylon bushings, and fourteen bolts with matching locknuts. 

The curved equalizer allow the front and rear springs to articulate and share load between the axles. This kit replaces the listed suspension components while retaining your existing compatible leaf springs and hangers. 

One kit provides the listed components for one tandem axle trailer- two axles. 

Specifications: 

Brand: Running Gear Parts
Kit type: Tandem axle equalizer and shackle hardware kit
Total Quantity: 46 pieces

Suspension type: Double-eye leaf spring 
Compatible spring width: 1-3/4" 

Equalizer style: Curved
Equalizer outer-hole spacing: 7-3/4" center-to-center
Equalizer bolt size: 9/16"

Shackle strap hole spacing: 2-5/8" center-to-center

Bushing material: Nylon
Bushing inside diameter: 9/16"

Bolt diameter: 9/16" 
Bolt length: 3"
Bolt style: Non-greaseable 

Equalizer and shackle strap finish: Black

What's Included by Kit Option:

1 Kit:

2 × 7-3/4″ curved suspension equalizers

8 × 2-5/8″ center-to-center shackle straps

8 × nylon bushings with 9/16″ inside diameter

14 × 9/16″ diameter × 3″ long suspension bolts

14 × matching locknuts

Compatibility & Fitment

For tandem axle trailers using compatible 1-3/4″ wide double-eye leaf springs. Match the existing equalizer’s hole spacing and height, shackle spacing, bolt dimensions, and bushing dimensions before ordering. Axle capacity or brand alone does not confirm fitment.

The eight loose bushings do not constitute a complete replacement set for every spring and equalizer pivot. Inspect the remaining bushings and replace separately as needed.

Leaf springs, suspension hangers, U-bolts, and spring tie plates are not included.

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