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RGP Tandem Axle Suspension Hardware Kit — 2-5/8″ Shackle Straps, 9/16″ × 3-1/2″ Bolts & Locknuts, 36 Pieces


Regular price $56.79 USD
Shipping calculated at checkout.

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 suspension attaching hardware with this RGP 36-pieces kit featuring 8 shackle straps, 14 non-greaseable suspension bolts and 14 matching locknuts. 

The shackle straps feature 2-5/8" center-to-center hole spacing and 1/4" steel thickness. Each bolt measures 9/16" in diameter by 3-1/2" long and uses a matching 9/16"-18 locknut. 

The package provides the hardware quantities used at the shackle connections, outer spring-eye mounts and equalizer center pivots of a conventional tandem double-eye suspension. All supplied dimensions must match the existing suspension before installation.  

Specifications

Brand: RGP
Product type: Tandem axle suspension hardware kit
Suspension application: Compatible double-eye leaf-spring layouts
Total pieces: 36

Shackle strap quantity: 8
Strap hole spacing: 2-5/8″ center-to-center
Strap overall length: 3-3/4″
Strap width: 1-1/4″
Strap thickness: 1/4″
Strap hole diameter: 9/16″
Strap material: Steel
Strap cross-reference: 4101-2A

Suspension bolt quantity: 14
Bolt diameter: 9/16″
Bolt length: 3-1/2″
Bolt thread: 9/16″-18
Bolt style: Non-greaseable

Locknut quantity: 14
Locknut thread: 9/16″-18
Locknut style: Reversible hex locknut

What’s Included by Kit Option

1 Kit — 36 Pieces:

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

14 × Non-greaseable suspension bolts, 9/16″ diameter × 3-1/2″ long

14 × Matching 9/16″-18 locknuts

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