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QA1 Long wheelbase, single adjustable shocks, 200 lb. springs 1973-1979
$2749.95

QA1 Rear Coil-Over Conversion Kit for 1973-1979 F-100 Long Wheelbase Trucks

Upgrade your 1973-1979 F-100 long wheelbase truck with the QA1 Rear Coil-Over Conversion Kit, designed to enhance your driving experience both on the street and the track. This innovative kit features a unique torque arm design that maximizes performance while eliminating common binding issues found in other systems. Enjoy a customizable drop of 4" to 7" to suit your style and handling needs.

Key Features:

  • Adjustable Components: The kit includes adjustable watts link, torque arm, trailing arms, bracket mounts, and single-adjustable shocks, allowing you to fine-tune your setup for optimal performance.
  • Versatile Shocks: The single-adjustable shocks are perfect for street-driven trucks that may hit the track occasionally. Easily switch from a soft setting for cruising to a firmer setup for spirited driving on twisty roads.
  • Limited Lifetime Warranty: Register your shocks for a best-in-class warranty, giving you peace of mind on the road.
  • Unique Watts Link Design: This compact system keeps your rear end housing centered, preventing tire rub against the bed and accommodating rear-exiting exhaust systems.
  • Customizable Fitment: Adjustable lower trailing arms let you dial in your wheelbase for the perfect fitment of your wheels and tires.
  • Easy Installation: Parts come powder-coated and ready to install, with all necessary hardware included. You can easily bolt up the kit in your garage or have it installed by a local shop.

Specifications:

  • Compatible with stock '73-'79 F100/F150 9" axle with iron 3rd member
  • Direct fit for aftermarket 9" axles with iron 3rd member
  • Note: Aluminum 3rd member will NOT work
  • Includes 200 lb. high travel springs

Customer Feedback:

Users appreciate the significant improvement in handling and ride quality, noting how the adjustable shocks allow for a tailored driving experience. Many have successfully installed the kit themselves, highlighting the straightforward instructions and comprehensive hardware included.

Made in the USA, the QA1 Rear Coil-Over Conversion Kit brings performance and reliability to your classic F-100 truck. Take your ride to the next level!

Other Part Numbers:
QA1 #qapR122-200

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is QA1?

QA1 is a company that was founded in 1993. They specialize in manufacturing high-quality suspension parts, shock absorbers, composite driveshafts, bearings, steering components, and other related accessories. Their products are used in different industries such as the industrial, motorsports, and automotive sectors. Today, they are the leading manufacturer of OE parts in the market.

Suspension Experts

The company is best known for its motion control sub-assemblies and wide range of suspension systems. They are always searching for new ways to develop each component to enhance their products further. 

State-of-the-Art Facility

The company is housed in one of the most sophisticated facilities in the market to accommodate the increasing demands of its customers. With 100,000 square feet at their disposal, their facility contains high-tech equipment such as a CNC machine, laser cutting equipment, hydraulic presses, and filament windings. It allows them to manufacture the best product in the market.

QA1 is also one of the few companies that are ISO certified. It guarantees that their parts are manufactured consistently, following the standards put in place by the company and the regulators.

Purchase QA1 Products At Vivid Racing

If you are in the market for quality suspension parts for your vehicle, then QA1 is the brand for you. They have been manufacturing components for the last 28 years and have consistently given their customers parts that meet their demand. To know more about QA1, visit Vivid Racing and check out their list of parts that meet your demand.



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Sale price None
Wholesale price $2,875.90
Shipping Weight: 51.00
Length: 63
Width: 14
Height: 7
Product Added At Monday 23 December, 2024
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $2,437.20 $3,046.50 ? $2,749.95 ? 2025-07-11 10:45:23

Manufacturer Direct Shipping
This item is available for direct shipping from the manufacturer. Please verify stock availability with the manufacturer. Once confirmed, you can place an order through [Meyer Distributing], who will arrange for dropshipping from the manufacturer directly to our customer.

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