Sale

Suspension and Components› Suspension Kits

Fabtech

Fabtech 20-21 GM K3500HD 3.5in Uniball UCA Kit w/Stealth

$1,853.57 $1,618.16 Save $235.41

SKU: F001 K1181M

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Fabtech K1181M is a 3.5" Uniball UCA Lift Kit with Stealth Shocks for 2020-2024 Chevy Silverado 3500HD and GMC Sierra 3500HD 4WD. This kit increases ride height for 35" tires and levels the vehicle.
Show original supplier description

Part #: K1181M

Obtain increased wheel travel and mild lift height with this heavy duty Upper Control Arm system. The tubular Upper Control Arms feature 1.25 OD. .120 wall thick chromoly tube construction with 1 diameter Stainless Steel Uniballs that attach to the factory spindle without drilling. These heavy duty UCAs have been designed to work in conjunction with Fabtechs legendary Dirt Logic 2.5 Coilover shocks for a complete front suspension system upgrade. The F150s offroad suspension performance will be greatly enhanced due to the extensive ride tuning of the stainless steel Dirt Logic 2.5 Coilovers and rear Dirt Logic 2.25s.

Features:

  • Arms Eliminate Upper Ball Joint
  • Arms Super Strong 1 in. ID Stainless American Uniball
  • 17-4 Stainless Steel Heat Treated Uniball Pin
  • Arms Are Direct Replacements For Factory Arms
  • For Suspensions That Require Additional Strength/Alignability

Uniball UCA Lift System w/Shocks | 3.5 in. Lift | w/Front And Rear Stealth Shocks | Incl. PN [FTS21275/FTS755/FTSBK21/FTS6341/FTS6019]

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Vehicle Symptoms
  • Front suspension feels loose and wanders on highway
  • Uneven tire wear on front tires
  • Clunking noise from front suspension over bumps
  • Limited wheel travel when off-roading
  • Vehicle sits unevenly after leveling kit install
Relevant Conversations
  • 2020 Silverado 3500HD front suspension clunking over bumps
  • Fabtech K1181M vs BDS suspension lift for GM 3500
  • How to install 3.5 inch lift on 2021 Sierra 3500HD
  • Uniball upper control arm vs ball joint lift kit
  • My truck has uneven tire wear after leveling kit
  • Who sells Fabtech stealth shocks for GM HD trucks
  • Best lift kit for 35 inch tires on 2022 Silverado 3500
  • Fabtech uniball UCA review for off-road use
  • Chevy 3500HD front end wandering at highway speed
  • What lift kit fits 2024 Sierra 3500HD 4WD

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFabtech
Part NumberF001 K1181M

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy