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UMI Performance 64-67 A-Body Adjustable Upper Control Arms- w/ Roto-Joint

SKU: UMI4039-B

UMI Upper Control Arms...

UMI Performance 64-67 A-Body Adjustable Upper Control Arms- w/ Roto-Joint

SKU: UMI4039-B

UMI Upper Control Arms...

A$607.25
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

UMI Performance 64-67 A-Body Adjustable Upper Control Arms- w/ Roto-Joint

UMI’s Roto-Joint adjustable rear upper control arms are a bulletproof addition to your street or pro-touring car. UMI’s Roto-Joint upper control arms are suitable for street, strip or corner carving. The premium UMI built spherical joint drastically minimizes suspension deflection for a crisp handling setup, easy pinion angle tuning and less wheel hop. These on car adjustable upper control arms adjust easily while staying bolted to the car and are designed to handle virtually any application. The Roto-Joints combined with UMI’s in house designed and machined CrMo adjuster equal ultimate strength and performance. These heavy duty arms feature ¼” thick CNC laser cut mounting pads and a mix of TIG and MIG welding. These simple bolt in replacements install in 1-2 hours and are designed to work on all rear end housings. Launch harder and turn faster with UMI’s ultimate arms!

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
umiABR724-B UMI Performance 65-67 GM A-Body Pro-Touring Rear Suspension Kit - Black (1x umi4039-B, 1x umi4042-B, 1x umi2999, 1x umi4002)

Data: v4.2 - Upd: 2026-11-08 13:47:05

Features

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.

Specifications

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.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 13:41:50

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Umi Performance
StreetFX SKU umi4039-B
SFX Item ID 4155610
Accounting SKU umi-4039-B
Manufacturer SKU 4039-B
Manufacturer UPC 4039-B

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