QA1 Diagonal Link

Additional Information

QA1's Diagonal Link Kit streamlines the fabrication process of building a drag race style 4-Link and is a simple solution for lateral axle locating.

Part Type

Suspension Track Bar

Product Overview

Product Overview: QA1's Diagonal Link Kit helps streamline the fabrication process, of building a drag race style 4-Link. This diagonal link kit pairs up great with the QA1 HD Pro Rear 4-Link systems, but can be easily adaptable into most drag race setups. High quality, MIG-weldable components ensure a safe and properly engineered design. Performance and Adaptable Design: This heavy-duty design can handle the demands of high-performance racing. The 1 inch diameter by 40 inch length of tubing can be cut to length to work in most setups with 40 inch or narrower frame-rails. Pre-bent and drilled mounting brackets make installation into inch trailing arm bolts a breeze. Grade 8 hardware and QA1 chromoly, high misalignment rod ends are the standard in strength and offer generous mounting flexibility. Look to the provided dimensional diagrams and renderings to help with your custom install. Kit Contents: 40 Diagonal link kit with mounting brackets and tube adapters Grade 8 hardware kit Made in the USA Fitment Notes Works on 40 in. and narrower frame rails

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	qapR170-110	QA1 Heavy Duty Pro Rear Drag 4-Link System - Single Adjustable - 110lb Springs (2x qap14HT110, 2x qapDS701, 1x qap7838-1067, 1x qap7838-1068)
	qapR170-150	QA1 Heavy Duty Pro Rear Drag 4-Link System - Single Adjustable - 150lb Springs (2x qap14HT150, 2x qapDS701, 1x qap7838-1067, 1x qap7838-1068)
	qapR270-110	QA1 Heavy Duty Pro Rear Drag 4-Link System - Double Adjustable - 110lb Springs (2x qap14HT110, 2x qapDD701, 1x qap7838-1067, 1x qap7838-1068)
	qapR270-150	QA1 Heavy Duty Pro Rear Drag 4-Link System - Double Adjustable - 150lb Springs (2x qap14HT150, 2x qapDD701, 1x qap7838-1067, 1x qap7838-1068)
	qapR370-110	QA1 Heavy Duty Pro Rear Drag 4-Link System - MOD Shocks - 110lb Springs (2x qap14HT110, 1x qapM711PL, 1x qapM711PR, 1x qap7838-1067, 1x qap7838-1068)
	qapR370-150	QA1 Heavy Duty Pro Rear Drag 4-Link System - MOD Shocks - 150lb Springs (2x qap14HT150, 1x qapM711PL, 1x qapM711PR, 1x qap7838-1067, 1x qap7838-1068)

• 40in. Length
• Heavy-duty design
• Includes all required mounting hardware
• Made in the USA

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Diagonal Link, Mild Steel, Natural, 1 in. Diameter, 40 in. Length, Kit

QA1 diagonal link kits help streamline the fabrication process of building a drag race-style 4-link. Designed to be heavy-duty to handle the demands of high-performance racing, the kits offer high-quality, MIG-weldable components to ensure a safe, easy to install, and properly engineered product. QA1's diagonal link kits pair up great with their HD Pro rear 4-link systems, but can be easily adaptable into most drag race setups.

Kit contents, features, and benefits:
• 1 in. diameter x 40 in. length of tubing
-- Can be cut to length to work in most setups
-- 40 in. or narrower frame rails
• Pre-bent and drilled mounting brackets
-- Make installation into 1/2 in. trailing arm bolts a breeze
• Grade 8 hardware
• QA1 chromoly, high-misalignment rod ends
-- Standard in strength and offer generous mounting flexibility