2-3ft Suspension Rear Drop Lowering Shackles - 2 in Rear Drop Kit

In this review the 2-3' Suspension Rear Drop Lowering Shackles are assessed as a budget-friendly replacement for owners wanting a modest 2 in rear drop. The kit is aimed at truck and SUV owners who need a direct-fit, steel leaf spring shackle replacement that replicates OEM function without OEM cost. The single biggest reason to buy is that these shackles offer a straightforward way to lower the rear up to 2-3 in using hardened 35 steel parts that are factory inspected before shipping.

Key Features

• Material and hardness: Built from 35 steel with HB147-189 hardness, the shackles are designed to be sturdy and resist deformation under load.
• Direct replacement: Sold as a replacement for part numbers like 6400 410520, the kit installs in place of factory shackles and performs the same function.
• Drop range: The design lowers the rear by about 2-3 in, giving a more level stance or reduced rake for many pickup trucks and SUVs.
• Corrosion resistance: The steel construction is described as not easily corroded or rusted, which helps the kit last in typical road conditions.
• Inspection and warranty: Each kit undergoes 100% factory inspection and includes a 12 month warranty for peace of mind after purchase.
• Application breadth: Compatible with many Chevy, GMC and certain Ford and Dodge models, making it useful for owners of older full-size trucks and some mid-size trucks.

Who It's For

This kit is best for DIY truck owners who want a cost-effective way to lower the rear of their pickup by roughly 2 in without changing the springs. It fits a wide range of GM full-size trucks from the late 1980s through recent Silverado/Sierra 1500 model years and select Ford Rangers and F150s, so enthusiasts restoring or modifying these trucks will find it relevant.

Owners who need exact factory OEM components, or who require a larger drop, adjustable ride height, or a full suspension overhaul should look elsewhere. Also, those who expect premium corrosion protection coatings or custom engineered suspension performance beyond a simple drop should consider higher-end or OEM options.

Pros & Cons

Pros

• Direct-fit replacement that performs the same function as OEM at a lower cost.
• Made from hardened 35 steel for strength and resistance to deformation.
• Simple installation for many owners and backed by a 12 month warranty.
• Wide vehicle compatibility across Chevy, GMC and select Ford models.

Cons

• Not a genuine OEM part, so finish and long-term durability can vary by user reports.
• Some customers reported mixed feedback on durability and ease of installation, so results may depend on installation quality and vehicle condition.

Specifications

Product type	Rear drop shackle kit
Drop height	2-3 in
Material	35 steel
Hardness	HB147-189
Replacement part no.	6400 410520 (direct fit replacement)
Warranty	12 month warranty
Vehicle compatibility	Select Chevy, GMC, Ford and Dodge trucks and SUVs (see description)

Our Verdict

For budget-conscious truck owners looking to lower the rear by about 2 in with a direct-fit, steel shackle replacement, this kit is a sensible value. The hardened 35 steel construction and factory inspection are positives, and the broad compatibility makes it useful for many Chevy and GMC trucks and some Ford models. Buyers wanting OEM finish or guaranteed long-term durability may prefer an OEM or premium alternative, but for straightforward lowering this kit represents good value.

Frequently Asked Questions

Will these shackles fit my Silverado?
They are designed to replace shackles including part no. 6400 410520 and list compatibility with many Silverado and Sierra 1500 model years; verify fit against your model year before ordering.

How much drop will I get?
The shackles are intended to lower the rear approximately 2-3 in when used with compatible leaf springs.

Is this an OEM part?
No, this is not a genuine OEM part but is sold as a direct replacement that performs the same function and comes with a 12 month warranty.