Suspension and Components› Sway Bars and Components

SuspensionMAXX

Heavy-Duty Sway Bar End Link Kit

$187.96

SKU: SMX-K666F

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The SuspensionMAXX SMX-K666F is a heavy-duty front sway bar end link kit designed to tighten handling and extend suspension life for select GMT360 models. These end links are built to eliminate flex and reduce body roll, especially beneficial for lifted or high-mileage trucks. They feature 4140 alloy steel eyelets, drawn over mandrel steel tubing, and Grade 8 bolts for durability.
Show original supplier description
The SuspensionMAXX SMX-K666F Heavy Duty Front Sway Bar End Links are engineered to significantly improve your truck's handling and the longevity of your suspension system. Designed as direct-fit replacements for the OE links, they address common issues like squeaking, rattling, and breakage experienced by owners of 2002-2003 Chevrolet Trailblazers, GMC Envoys, Oldsmobile Bravadas, Buick Rainiers, and Isuzu Ascenders (including XL models). This kit is suitable for both 2WD and 4X4 vehicles. Constructed with robust materials, these end links feature eyelet links made from ultra-high strength 4140 treated alloy steel and use thermoplastic/urethane bushings that outperform and outlast original rubber components. The assembly incorporates drawn over mandrel steel tubing and Grade 8 bolts, ensuring a stronger, more durable connection than factory-installed parts. Installation is straightforward and can typically be completed within 45 minutes to an hour using basic tools. The kit comes complete with stainless steel washers and locking fasteners, and it directly replaces Moog part numbers K6666/K6665. SuspensionMAXX offers these end links in original equipment lengths and can manufacture custom lengths to meet specific requirements. The product is 100 percent American-made and covered by a limited warranty, backed by SuspensionMAXX customer service and technical support.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSuspensionMAXX
Part NumberSMX-K666F
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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