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UMI Performance 78-88 G-Body S10 Tubular Front Upper & Lower A-Arms Poly

SKU: UMI303133-1-R

Control Arms

UMI Control Arm Kits...

UMI Performance 78-88 G-Body S10 Tubular Front Upper & Lower A-Arms Poly

SKU: UMI303133-1-R

Control Arms

UMI Control Arm Kits...

A$3,389.53
IN STOCK! Est Ship 3-7 Days days. In stock at 1 location (3 available)

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Description

UMI Performance 78-88 G-Body S10 Tubular Front Upper & Lower A-Arms Poly

UMI lower A-Arms are fabricated from USA DOM tubing with CNC notched tube ends for a precision fit. They are jig built to maintain accuracy and bolt on correctly every time. All critical areas are TIG welded for superior strength and a clean look. UMI’s lower A-Arms also feature improved ball joint angle for lowered vehicles and the design provides additional tire clearance. UMI P/N 3031 lower a-arms include greaseable fluted polyurethane bushings for a smooth quiet ride. They come preloaded with polyurethane bump stops, steering stops and premium ball joints. UMI’s extensive testing on the street, drag strip and skid pad ensures a quality product able to with stand all types of abuse. UMI lower A-Arms are designed to work with factory springs, lowering springs and most coil over kits without changing the a-arms. For exceptional handling and performance we recommend combining with UMI upper a-arms, part # 3033-2. UMI’s lower a-arms are shipped fully assembled and ready for installation. Designed and manufactured with pride in Philipsburg, PA - USA.

Data: v4.2 - Upd: 2026-11-09 12:48:37

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 09:49:14

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Umi Performance
StreetFX SKU umi303133-1-R
SFX Item ID 4156257
Accounting SKU umi-303133-1-R
Manufacturer SKU 303133-1-R
Manufacturer UPC 303133-1-R
Alternative References UPI-303133-1-R

Control Arms, Tubular, Ball Joints, Steel, Red, Front, Chevy, GMC, Kit

UMI Performance complete front-end kits offer improved handling and great value. These non-adjustable upper and lower A-arm kits not only save you dollars, but weight on your front-end, while adding strength, better ride quality, and reduced bushing deflection. Built from strong DOM tubing, the fully assembled and ready-to-install A-arms have CNC-machined upper and lower ball joint holders and 4140 chromoly cross shafts.

UMI upper A-arms feature greaseable Delrin® bushings, and the lower A-arms are supplied with new lower ball joints installed, polyurethane bushings, and sway bar mounting provisions. These UMI kits are designed to work with factory springs and lowering springs mounted in the factory location. The A-arms are given a durable and brilliant powdercoat finish. Order the complete front-end kit designed to fit your vehicle.

Product Attributes
BrandUMI Performance
Manufacturer's Part Number303133-1-R
Part TypeControl Arms
Product LineUMI Performance Complete Front End Kit
Control Arm StyleTubular
Control Arm MaterialSteel
Ball Joint IncludedYes
Bushings IncludedYes
Control Arm ColorRed
Cross Shaft Length (in.)14.210 in.
Cross Pin MaterialChromoly
AdjustableNo
Hardware IncludedNo
Bushing MaterialPolyurethane/Delrin®
QuantitySold as a kit.
NotesBall joints are 1/2 in. taller than standard height ball joints. Upper arms have Delrin bushings and lowers have polyurethane bushings.

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