Suspension and Components› Suspension Kits

SuspensionMAXX

1.5-Inch Rear Suspension Lift Block Kit

$149.99

SKU: SMX-153015

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-153015 is a heavy duty block and U-bolt kit designed to increase the rear suspension height by 1.5 inches. This kit is ideal for increasing ground clearance or fitting larger wheels and tires. It is constructed from steel blocks and high-strength U-bolts and fasteners.
Show original supplier description
The SuspensionMAXX SMX-153015 is a heavy duty block and U-bolt kit engineered to provide a 1.5-inch rear lift for compatible trucks. This kit is ideal for leveling vehicles, increasing ground clearance, or accommodating larger wheels and tires. It is constructed from durable steel blocks and high-strength U-bolts and fasteners, ensuring longevity and performance. This kit is specifically designed for 1999-2006 Chevrolet/GMC Silverado/Sierra 1500 4x4 models, as well as 2007 Classic model vehicles, provided they are equipped with 9/16 inch diameter U-bolts and a 6-bolt wheel configuration with torsion bar front suspension. SuspensionMAXX also provides dedicated customer service and technical support for this product. The kit includes all necessary hardware for installation, which can typically be completed in about 1.5 hours. SuspensionMAXX backs this product with a MAXX Structural Lifetime Warranty and proudly states it is 100% American Made.

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-153015
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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