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Suspension and Components› Suspension Kits

SuspensionMAXX

Rear Lift Block Kit

$212.96 $169.99 Save $42.97

SKU: SMX-174220

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-174220 is a 2-inch rear lift block kit designed for 2003-2013 4WD Dodge Ram 3500 models with a gas engine, dual center bolts, and specific U-bolt dimensions. This kit is constructed from durable steel and includes high-strength U-bolts to increase rear suspension height.

It is also suitable for leveling vehicles that carry heavy loads or for fitting larger wheels and tires, thereby increasing ground clearance. The kit is made in America and is covered by a lifetime warranty.
Show original supplier description
The SuspensionMAXX SMX-174220 is a heavy-duty rear block and U-bolt kit designed to provide a 2-inch suspension lift for select Dodge Ram 3500 models. This kit is specifically engineered for 2003-2013 4WD Ram 3500 trucks equipped with a gas engine, dual center bolts, and 9/16" diameter x 4-1/16" width U-bolts. Constructed from strong and durable steel, this kit features high-strength U-bolts and fasteners to ensure longevity and reliability. It serves multiple purposes: increasing rear suspension height for improved ground clearance and the ability to fit larger wheels and tires, leveling the vehicle's stance, or compensating for sag when hauling heavy loads such as campers. SuspensionMAXX emphasizes that their components are made with quality alloy metals, will not crack or compress, and are 100% American-made. The kit is backed by the MAXX Structural Lifetime Warranty and is supported by SuspensionMAXX customer service. Key specifications include a rear lift height of 2 inches, a block lift type, a bolt diameter of 0.5625 inches, and U-bolt width of 4.0625 inches. The kit is designed for quick installation, estimated at approximately 1.5 hours, with technical support available.

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-174220
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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