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Rear Suspension Enhancement Helper Spring Kit for Silverado & Sierra 1500 2019–2026 – GMRS15 – Northline Parts

Rear Suspension Enhancement Helper Spring Kit for Silverado & Sierra 1500 2019–2026 – GMRS15

SKU: NLT2S01572
$149.19 In Stock
$149.19
Sale price  $149.19 Regular price 
Ships for free in 2–4 business days.
This rear suspension enhancement kit is designed for select 2019–2026 Chevrolet Silverado 1500 and GMC Sierra 1500 pickup trucks using GMRS15-style helper springs.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model

Listed applications and configurations:

  • 2019 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2020 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2021 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2022 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2023 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2024 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2025 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2026 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • 2019 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2020 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2021 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2022 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2023 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2024 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2025 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment
  • 2026 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment

Fitment note: Confirm truck generation, 2WD/4WD, rear suspension configuration and the actual kit contents. GMRS15 identifies a Timbren-style application and does not imply this aftermarket listing is Timbren-branded.

Product Overview

The load-support springs work with the rear suspension to reduce sag and help stabilize the truck when carrying cargo or towing within its rated capacity.

Rear-end squat and sway increase when heavy loads compress the rear suspension. Helper springs can improve support but do not increase the vehicle's rated payload or towing capacity.

Confirm truck generation, 2WD/4WD, rear suspension configuration and the actual kit contents. GMRS15 identifies a Timbren-style application and does not imply this aftermarket listing is Timbren-branded.

Key Features & Performance

  • Application: 2019-2026 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment.
  • Purpose: The load-support springs work with the rear suspension to reduce sag and help stabilize the truck when carrying cargo or towing within its rated capacity.
  • Identification: GMRS15.

Specifications

  • Part / assembly: Rear Suspension Enhancement Helper Spring Kit
  • Application / size: 2019-2026 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment
  • Reference number(s): GMRS15
  • Northline Parts SKU: NLT2S01572

Replaces Part Numbers

  • GMRS15

Part numbers listed here are identifiers for comparing components. Different formatting of the same number is not a separate interchange, and unrelated versions should not be assumed compatible.

What Is Included

The replacement component or kit pictured in this listing. Accessories, mounting hardware, fluids, and seals are included only when specifically shown or stated.

Installation & Fitment Notes

Confirm truck generation, 2WD/4WD, rear suspension configuration and the actual kit contents. GMRS15 identifies a Timbren-style application and does not imply this aftermarket listing is Timbren-branded.

Inspect related components during replacement and follow the equipment manufacturer’s procedures for fastener torque, alignment, sealing, and any required calibration or fluid service. Do not assume that installation supplies or fluids are included.

Frequently Asked Questions

Is this an OEM part?

No. Unless the product listing explicitly states otherwise, this is an aftermarket replacement. The manufacturer names and OE references identify applicable equipment, not the maker of this item.

How do I check fitment?

Confirm truck generation, 2WD/4WD, rear suspension configuration and the actual kit contents. GMRS15 identifies a Timbren-style application and does not imply this aftermarket listing is Timbren-branded.

What if my model year appears above but the part looks different?

Do not install it based on the model year alone. Factory equipment changes by engine, build date, trim, mounting style, and option package. Match the original part number and physical connections first.

Part Summary

Part: Rear Suspension Enhancement Helper Spring Kit

Applications: 2019-2026 Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment; 2019-2026 GMC Sierra 1500 — rear suspension, GMRS15-specific fitment

Reference Numbers: GMRS15

Purpose: The load-support springs work with the rear suspension to reduce sag and help stabilize the truck when carrying cargo or towing within its rated capacity.

Northline Parts SKU: NLT2S01572

Keywords: Rear Suspension Enhancement Helper Spring Kit, Rear Suspension Enhancement Helper Spring Kit for Silverado & Sierra 1500 2019–2026 – GMRS15, NLT2S01572, Northline Parts, GMRS15, Chevrolet Silverado 1500 — rear suspension, GMRS15-specific fitment, GMC Sierra 1500 — rear suspension, GMRS15-specific fitment.

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