KSP PERFORMANCE 2" Rear Drop Shackle Kit for 1999–2019 Silverado/Sierra 1500 — 1–2" Adjustable, Greaseable Poly Bushings

KSP PERFORMANCE 2" Rear Drop Shackle Kit lowers 1999–2019 Chevy/GMC 1500 trucks by 1"–2" using adjustable shackles with greaseable polyurethane bushings for long life and reliable ride control.

Give your Silverado or Sierra a controlled, factory‑friendly drop without cutting springs or complex modifications. These adjustable rear shackles are engineered for 6‑lug 1500 pickup models from 1999 through 2019 and allow a safe 1"–2" rear lowering. Built with TIG reinforcement, a durable powder coat and replaceable polyurethane bushings, the kit focuses on corrosion resistance, noise reduction and straightforward installation for most owners and shops.

How much lowering range will I get and which trucks fit?

The KSP PERFORMANCE shackle kit provides an adjustable rear drop between one and two inches, intended for 1999–2019 Silverado and Sierra 1500 models with 6‑lug hubs. It supports both 2WD and 4WD setups. For 2020 and newer trucks, additional washers are required to achieve the correct geometry.

• Drop range: 1"–2" adjustable
• Fitment: 1999–2019 Silverado/Sierra 1500, 6‑lug only
• Compatible with 2WD and 4WD variants
• 2020+ trucks need extra washers (not included)

What materials and features improve durability and quiet operation?

This kit uses greaseable, replaceable polyurethane bushings that resist wear and reduce squeak over time. The shackle bodies are TIG welded for stronger joints than typical MIG‑welded parts and receive a powder coat finish to slow rust formation in road conditions. Threaded zerk holes hold grease fittings securely so routine lubrication is simple.

• Greaseable polyurethane bushings, replaceable
• TIG welding for reinforced strength
• Powder coated surfaces for corrosion resistance
• Tapped/threaded zerk fitting holes to prevent loosening

Is the kit easy to install and what comes in the box?

Installation is designed to be straightforward with no welding required; orientation can vary by model year so review the included instructions or contact support if unsure. The package includes two rear lowering shackles, two grease zerks and a professional instruction sheet to guide installation. KSP PERFORMANCE also offers a 30‑day refund window and 12‑month replacement parts support.

• Includes 2 rear shackles, 2 zerk fittings, installation guide
• No welding required—bolts on to factory mount points
• Orientation differs by year—follow instructions or ask support
• After‑sale: 30‑day refund, 12‑month replacement parts

Who is this for? This shackle kit suits owners who want a modest, reliable rear drop for appearance or improved stance without altering spring packs or ride hardware. It’s ideal for DIY installers and professional shops working on 1999–2019 Chevy and GMC 1500 trucks (6‑lug), drivers who value maintainable components and anyone wanting a reversible, serviceable lowering solution.