UMI Performance 64-72 GM A-Body Tubular Lower Control Arms

Rear lower control arms are a necessary upgrade for any General Motors A-Body vehicle. Our control arms are designed to replace the weak and rusted factory arms, providing increased strength and rigidity. Made from strong DOM steel tubing, these direct bolt-on replacements help reduce wheel hop and improve cornering, leading to better track consistency. They feature CNC machined mild steel tubing, fully TIG welded construction, greaseable polyurethane bushings, and zerk grease fittings for optimal performance.

Additional Information

Upgrade your GM A-Body with UMI rear lower control arms. Built from strong DOM steel with TIG welded construction, they reduce wheel hop, improve cornering, and install easily in about an hour using OEM hardware.

• 1.500" OD x 0.120" DOM mild steel tubing
• CNC machined
• Durable powder coat finish
• Easy bolt-on installation
• Fully TIG welded
• Greaseable High Quality fluted bushings
• Reinforced sway bar holes

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
	umiABR401-R	UMI Performance 65-67 GM A-Body Rear Suspension Kit - Red (1x umi4015-R, 1x umi4018-R, 1x umi3000-R, 1x umi4002)
	umiABR413-R	UMI Performance 65-67 GM A-Body Rear Suspension Kit - Red (1x umi4015-R, 1x umi4018-R, 1x umi3000-R, 1x umi4029-R, 1x umi4001, 1x umi4034-R)
	umiABR801-R	UMI Performance 68-72 GM A-Body Rear Suspension Kit - Red (1x umi4015-R, 1x umi4016-R, 1x umi3000-R, 1x umi4002)
	umiABR813-R	UMI Performance 68-72 GM A-Body Rear Suspension Kit - Red (1x umi4015-R, 1x umi4016-R, 1x umi3000-R, 1x umi4028-R, 1x umi4001, 1x umi4034-R)

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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