My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

UMI Performance 6401-B Stage 1 Truck Suspension Handling Kit with Monotube Shocks & Sway Bars

(1973-1974 Chevrolet C10 Pickup; 1975-1986 Chevrolet C10; 1979-1986 GMC C1500; 1973-1974 GMC C15/C1500 Pickup; 1975-1978 GMC C15; 1987 GMC R1500)

Manufacturer

Part Number

6401-B
Sale Price

$1,105.58

Estimated ship date Saturday, November 28

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The UMI Performance 6401-B Stage 1 Suspension Handling Kit delivers exceptional ride quality and handling balance for trucks at factory ride height. Engineered and 100% Made in the USA with American materials, this kit combines heavy-duty sway bars with truck-specific monotube shocks to provide confident control whether you're cruising, hauling, or carving corners. Power Tour proven and daily driver tested, it's a complete front and rear handling upgrade in one package.

Key Features:

  • 1-3/8" tubular front sway bar for improved roll stiffness and cornering stability
  • Three-way adjustable 1" solid rear sway bar for tunable handling balance
  • High-pressure nitrogen-charged monotube shocks with truck-specific valving for precise chassis control
  • Compatible with stock ride height trucks right out of the box
  • Compatible with lowered trucks when UMI P/N 6411 rear shock relocation kit is added
  • Power Tour and daily driver proven performance
  • 100% Made in the USA with domestic materials
  • Minor drilling required for installation

Shock Specifications:

  • Front Shock Extended Length: 14.375"
  • Front Shock Collapsed Length: 10.625"
  • Rear Shock Extended Length: 20.125"
  • Rear Shock Collapsed Length: 13.000"

The UMI Performance 6401-B Stage 1 kit is the ideal solution for truck owners seeking a meaningful suspension upgrade without sacrificing everyday driveability. Pair with UMI P/N 6411 to extend compatibility to lowered truck applications.

Products specifications

Fits

1973-1974 Chevrolet C10 Pickup; 1975-1986 Chevrolet C10; 1979-1986 GMC C1500; 1973-1974 GMC C15/C1500 Pickup; 1975-1978 GMC C15; 1987 GMC R1500

You had the best price by far..

Easy ordering.

Amazing, showed up fast and was an easy install!

Thanks For the help

I received my order in 2 days. I couldn't believe it. I would order from them again.

Good easy to use site

shopping was quick and easy

why am i being asked to write a review when I just [placed the order??

Good

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy