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QA1

QA1 Heavy Duty Pro Rear Drag 4-Link Component Kit

MPN: 78381067 Catalog #: 001842448 Category: Hardware - Singles Check Vehicle Fitment

Product Details

Product Overview: QA1's Heavy Duty Pro Rear Drag 4-link kit streamlines the fabrication process, delivering professional-grade results and performance in a convenient and easy-to-order kit all from one source. This 4-link system is designed for the hardcore, discerning, do-it-yourself racer looking for a no-compromise solution to take their vehicle to the next level in performance and adjustability. High quality, MIG-weldable components ensure a safe and properly engineered design that can be easily adapted into many drag racing setups. Find convenience, safety, and performance all from QA1 with the HD Pro Rear Drag 4-Link. Performance: This drag race-style 4-link design is known for its performance and adjustability, and features a wide range of instant center tuning and on-car adjustability. The components are adaptable and can be cut to length to work in any setup with 40 inch or narrower frame-rails. Heavy Duty Design: This heavy-duty design can handle the demands of high-performance racing. With inch-thick plates, 1-1/4 inch trailing arm tubes, Grade 8 hardware, and QA1 chromoly rod ends, these kits are built to put down serious power. Adaptability: This kit contains all the components and hardware needed for assembly and mounting of the trailing arms and four link. A lateral locating device is required, and you can look to QA1 for additional components that will help with drag race suspension setup. Look to the provided dimensional diagrams and renderings to help with your custom install. Kit Contents: 22 Trailing arm tubes, brackets, rod ends, tube adapters 40 shock crossmember and mounting tabs Grade 8 hardware kit Made in the USA Fitment Notes Welding required Trailing arm tubes can be cut to length Works with 3 in. axle tubes Works on 40 in. and narrower frame rails Does not include a lateral locating device

QA1 HD Pro Rear Drag 4-Link Component Kit includes brackets, trailing arms, hardware, tube adapters, QA1 rod ends, and shock crossmember to build a performance drag race style 4-link suspension.

QA1 7838-1067 HD Pro Rear Drag 4-Link Component Kit

QA1 Heavy Duty Pro Rear Drag 4-Link Component Kit

Four-Link Suspension Assembly

QA1 HD Pro Rear Drag 4-Link

Wide range of tunability

Best-in-class warranty

Includes all hardware

QA1 Drag Four Link

Heavy-duty design

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
QA1
Part Number
78381067
Catalog Number
001842448
Product Line
Other Hardware
Category
Engines & Parts
Type
Hardware - Singles
UPC / Barcode
806990175427
Vendor Product Category
Engine Components
Vendor Product Subcategory
Hardware - Singles
Length
62.00 in
Width
14.00 in
Height
6.50 in
Weight
48.50 lb
Units Per SKU
1
Freight / LTL
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 1 Available - Ready to ship
Estimated timing Ships from factory

This item is showing manufacturer availability and may ship directly from the manufacturer. Tracking details are provided as soon as they become available. ETA 0-5 Days to ship.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 1 available as of 6/3/2026.

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