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Product Summary

87-89 Ford Mustang, Polyurethane Bushing Material

  • The QA1 Level 3 Drag Kit is a high-performance upgrade for Fox Body Mustang drag racers, including a tubular K-member, control arms, boxed trailing arms, rear sway bar, and adjustable coilovers.
  • The tubular K-member, weighing only 25 lbs., is 50% lighter than stock, improving geometry and durability, with interchangeable engine mounts for different engine setups.
  • Front inverted struts and rear MOD Series coilovers enhance suspension performance, optimizing weight transfer and reducing 60-foot times, with adjustable ride height up to 2" lower than stock.
  • Lightweight caster camber plates offer precise suspension geometry adjustment for improved straight-line stability and handling.
  • Tubular control arms, trailing arms, and sway bars improve suspension movement, reduce flexing, and ensure smoother, straighter launches.
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Key Specs

MFG. Part #DK43-FMM2
Bushing MaterialPolyurethane
Hardware IncludedYes
Front Coil Springs IncludedYes
Rear Coil Springs IncludedYes
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Need To Know

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

Quick and Easy Returns

Return Policy

QA1 DK43-FMM2 Details

Product Overview

The QA1 Level 3 Drag Kit is a serious upgrade for any Fox Body Mustang owner drag racing their car. The kit includes a lightweight tubular K-member, drag race control arms, boxed trailing arms, rear sway bar, and front double adjustable coilovers and rear MOD Series coilovers.

Tubular Front K-member

These are designed to save weight and free up room in your engine bay. Weighing only 25lbs., it's 50% lighter than stock K-members and boasts improved geometry and durability. Interchangeable engine mounts, sold separately, offer flexibility for running factory or late model engines including Coyotes.

Inverted Front Struts and Rear Coil-Overs

Front struts feature an inverted cartridge design, large diameter shaft, and lightweight aluminum body for improved suspension performance. The lightweight, high-travel springs with proven spring rates optimize weight transfer, reducing 60-foot times and ET’s

These kits offer up to 2" lower than stock ride height adjustment to dial in the perfect stance.

QA1 MOD Series rear coilovers are great for serious track cars looking for the ultimate tunability and performance.

Lightweight Caster Camber Plates

Aluminum caster camber plates improve Mustang handling and performance. Lighter and sleeker than steel, they offer precision adjustment to fine-tune suspension geometry for straight line stability.

Tubular Control Arms, Trailing Arms and Rear Sway Bar 

Tubular control arms, trailing arms, and rear sway bars solve flexing and bushing bind, allowing smoother suspension movement and straighter launches.

Easy, Bolt-In Installation

Our commitment to thoughtful product design is evident in every fully bolt-in kit we produce, to deliver the highest level of performance at the track, while ensuring trouble-free compatibility.

Made in the USA

QA1 struts, coilover shocks, and tubular suspension is proudly made in Lakeville, Minnesota.

Fitment Notes

Engine mounts not included. QA1 offers several mounts for factory engines as well as popular engine swaps which are sold separately.

For Fox Body:

Kits for early year range Fox Bodies (1979-1986) will retain factory track width (narrow.)

Kits for late year range Fox Bodies (1987-1993) will retain track width of the factory ’87-’93 V8 cars (wide.)

Not compatible with Cobra IRS

Guides & Documents

QA1 DK43-FMM2 Specifications

KEY SPECS
MFG. Part #DK43-FMM2
BrandQA1
Bushing MaterialPolyurethane
Hardware IncludedYes
Front Coil Springs IncludedYes
Rear Coil Springs IncludedYes
Rear Leaf Springs IncludedNo
Front Shock TypeDouble adjustable coil-over
Rear Shock TypeSingle adjustable coil-over
Front Sway Bar IncludedNo
Rear Sway Bar IncludedYes
Rear Sway Bar TypeSolid
Rear Sway Bar Diameter1"
Tie Rod Sleeves IncludedNo
End Link Bushings IncludedNo
Rear Leaf Spring Bushings IncludedNo
Sway Bar Bushings IncludedNo
Upper Trailing Arms IncludedYes
Lower Trailing Arms IncludedYes
Trailing Arm Mount Braces IncludedNo
Panhard Bar IncludedNo
Torque Arm IncludedNo
Upper Control Arms IncludedNo
Lower Control Arms IncludedYes
Control Arm StyleTubular
Control Arm MaterialSteel
Front Strut Tower Bar IncludedNo
K-Member Support Brace IncludedYes
Rear Strut Tower Bar IncludedNo
Subframe Connectors IncludedNo
Chassis Stiffener IncludedNo
Calipers IncludedNo
Rotors IncludedNo
Brake Pads IncludedNo
Brake Lines IncludedNo
Wheel Studs IncludedNo
Center Link IncludedNo
Spindles IncludedNo
Inner Tie Rod Ends IncludedNo
Outer Tie Rod Ends IncludedNo
GENERAL
GTIN Code806990174024
Sold in QuantityKit
NotesKit will retain factory track width. Not compatible with Cobra IRS. Bump steer kit included.
Shocks IncludedYes

Fitment

    Customer Impersonation Script