Description

Get the performance benefits of a more rigid chassis by reducing unwanted flex with these QA1 adjustable rear frame supports. They are engineered to improve handling and suspension performance by eliminating chassis flex and decreasing torque transfer. Made from high-quality materials, they feature adjustable threaded sleeves for adjusting the preload in the rear trailing arm mount after installation. Designed to clear stock and aftermarket mufflers, they include all of the necessary hardware for an easy installation.

Product Overview

QA1 Adjustable Rear Frame Supports are engineered to improve handling, traction and all around suspension performance by eliminating unwanted chassis flex and reinforcing the upper and lower trailing arm mounts. Made from 1'' diameter cold rolled steel tubing, they feature zinc plated adjustable threaded sleeves for adjusting the preload in the rear trailing arm mount after installation. Designed to clear stock and aftermarket mufflers and includes all of the necessary hardware for an easy installation.

Features and Benefits

• Improve handling
• Eliminate unawanted chassis flex
• All installation hardware included
• Made in the USA

Product Details

Brand:	QA1
Description:	QA1 68-72 GM A-Body Adjustable Rear Frame Support
Manufacturer Part Number:	5284
Part Number:	qap5284
Prop 65 - Short Label:	WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:	Yes
Title:	QA1 Suspension Subframe 5284
UPC:	806990064738

Kit Options

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
	qapBW02-GMA2	QA1 68-72 GM A-Body Level 2 Big Wheel Kit (1x qap5248, 1x qap52522, 1x qap52737, 1x qap5284, 1x qap52870, 2x qap7888-109, 1x qapGD401-10450B, 1x qapRCK52358, 1x qapT115W, 1x qap5236, 1x qap52857)
	qapBW03-GMA2	QA1 68-72 GM A-Body Level 3 Big Wheel Kit (1x qap5248, 1x qap52522, 1x qap52737, 1x qap5284, 1x qap52870, 1x qap9039-308, 1x qapMG401-10450B, 1x qapT121W, 1x qap5236, 1x qap52857, 1x qapRCK52443)
	qapDK22-GMA2	QA1 68-72 GM A-Body Level 2 Drag Kit 2.0 w/ Shocks (1x qap5205, 1x qap5213, 1x qap5248, 1x qap5284, 1x qap52871, 1x qap52922, 1x qap52937, 2x qap7888-109, 1x qapGD401-11300B, 1x qapRCK52335, 1x qapT114W)
	qapDK22-GMG2	QA1 69-72 GM G-Body Level 2 Drag Kit 2.0 w/ Shocks (1x qap5205, 1x qap5213, 1x qap5248, 1x qap5284, 1x qap52871, 1x qap52922, 1x qap52937, 2x qap7888-109, 1x qapGD401-10350B, 1x qapRCK52336, 1x qapT114W)
	qapDK23-GMA2	QA1 Level 3 Full Vehicle Drag Racing Suspension Kits DK23-GMA2 Handling Packages, Racing, Coil Springs, Shocks/Struts, Control Arms, Rear Sway Bar, 0-2.000 in. Drop, Buick, Chevy, Olds, Kit
	qapDK23-GMG2	QA1 69-72 GM G-Body Level 3 Drag Kit 2.0 w/ Shocks (1x qap5205, 1x qap5213, 1x qap5248, 1x qap5284, 1x qap52871, 1x qap52922, 1x qap52937, 1x qap9039-308, 1x qapMG401-11300B, 1x qapRCK52440, 1x qapT121W)
	qapDK32-GMA2	QA1 Level 2 Full Vehicle Drag Racing Suspension Kits DK32-GMA2 DRAG KIT LEVEL 2, A-BODY; 68-72 GM A-BODY, W/0 SHOCKS
	qapDK32-GMG2	QA1 69-72 GM G-Body Level 2 Drag Kit 2.0 w/o Shocks (1x qap5205, 1x qap5213, 1x qap5248, 1x qap5284, 1x qap52871, 1x qap52922, 1x qap52937, 2x qap7888-109, 1x qapT114W)
	qapDK33-GMA2	QA1 68-72 GM A-Body Level 3 Drag Kit 2.0 w/o Shocks (1x qap5205, 1x qap5213, 1x qap5248, 1x qap5284, 1x qap52871, 1x qap52922, 1x qap52937)
	qapDK33-GMG2	QA1 69-72 GM G-Body Level 3 Drag Kit 2.0 w/o Shocks (1x qap5205, 1x qap5213, 1x qap5248, 1x qap5284, 1x qap52871, 1x qap52922, 1x qap52937, 1x qap9039-308, 1x qapT121W)
	qapHK22-GMA2	QA1 Level 2 Full Vehicle Handling Suspension Kits HK22-GMA2 Packages, Handling, Front and Rear Coil Springs, Shocks/Struts, Sway Bars, Control Arms, Chevrolet, GMC, Kit
	qapHK22-GMG2	QA1 Level 2 Full Vehicle Handling Suspension Kits for 1969-1972 GRAND PRIX, 1970-1972 MONTE CARLO - HK22-GMG2 HANDLING KIT LEVEL 2, G-PRIX, MONTE; GM, 69-72 G-BODY, W/ SHOCKS
	qapHK23-GMA2	QA1 68-72 GM A-Body Level 3 Handling Kit 2.0 w/ Shocks (1x qap5205, 1x qap5248, 1x qap52522, 1x qap52537, 1x qap5284, 1x qap52870, 1x qap52871, 1x qap9039-308, 1x qapMG401-10500B, 1x qapRCK52442, 1x qapT121W)
	qapHK23-GMG2	QA1 69-72 GM G-Body Level 3 Handling Kit 2.0 w/ Shocks (1x qap5205, 1x qap5248, 1x qap52522, 1x qap52537, 1x qap5284, 1x qap52870, 1x qap52871, 1x qap9039-308, 1x qapMG401-10550B, 1x qapRCK52441, 1x qapT121W)
	qapHK32-GMA2	QA1 68-72 GM A-Body Level 2 Handling Kit 2.0 w/o Shocks (1x qap5205, 1x qap5248, 1x qap52722, 1x qap52737, 1x qap5284, 1x qap52870, 1x qap52871, 2x qap7888-109, 1x qapT114W)
	qapHK32-GMG2	QA1 69-72 GM G-Body Level 2 Handling Kit 2.0 w/o Shocks (1x qap1891-106, 1x qap5205, 1x qap5248, 1x qap52722, 1x qap52737, 1x qap5284, 1x qap52870, 1x qap52871, 2x qap7888-109, 1x qapT114W)
	qapHK33-GMA2	QA1 68-72 GM A-Body Level 3 Handling Kit 2.0 w/o Shocks (1x qap5205, 1x qap5248, 1x qap52522, 1x qap52537, 1x qap5284, 1x qap52870, 1x qap52871)
	qapHK33-GMG2	QA1 69-72 GM G-Body Level 3 Handling Kit 2.0 w/o Shocks (1x qap5205, 1x qap5248, 1x qap52522, 1x qap52537, 1x qap5284, 1x qap52870, 1x qap52871, 1x qap9039-308, 1x qapT121W)

Data: v4.2 - Upd: 2026-10-03 01:52:17

Features

Specifications

Product Attributes - Brand

QA1

Product Attributes - Manufacturer's Part Number

5284

Product Attributes - Part Type

Trailing Arm Mount Brace Kits

Product Attributes - Product Line

QA1 Adjustable Rear Frame Supports

Product Attributes - UPC

806990064738

Product Attributes - Hardware Included

Yes

Product Attributes - Trailing Arm Brace Material

Steel

Product Attributes - Trailing Arm Brace Finish

Black powdercoated

Product Attributes - Quantity

Sold as a pair.

Compatibility