---
product_id: 203363645
title: "GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5\" & Right 8\", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish"
brand: "speedway motors"
price: "€ 430.68"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/203363645-gm-metric-racing-upper-control-arms-kit-1978-87-4130
store_origin: NL
region: Netherlands
---

# Includes precision-fit K5208 ball joints Greaseable steel bushings for durability 40% stronger 4130 chromoly steel GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish

**Brand:** speedway motors
**Price:** € 430.68
**Availability:** ✅ In Stock

## Summary

> 🏁 Upgrade your ride with race-grade control arms—because your GM deserves the best!

## Quick Answers

- **What is this?** GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish by speedway motors
- **How much does it cost?** € 430.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/203363645-gm-metric-racing-upper-control-arms-kit-1978-87-4130)

## Best For

- speedway motors enthusiasts

## Why This Product

- Trusted speedway motors brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Race-Ready Strength:** Forged 4130 chromoly steel delivers 40% more durability than stock arms, built to dominate the track.
- • **Complete Control Kit:** Includes left 8.5" and right 8" arms with aluminum shafts plus premium K5208 ball joints for ultimate handling.
- • **Plug & Play Precision:** Direct bolt-on design fits 1978-87 GM Metric chassis perfectly—no modifications, no hassle.
- • **Tailored for Your Ride:** Specifically engineered for mid-size GM Metric vehicles, guaranteeing perfect fit and superior control.
- • **Built to Last & Impress:** Black painted finish with greaseable steel bushings ensures long-lasting performance and sleek aesthetics.

## Overview

The GM Metric Racing Upper Control Arms Kit features forged 4130 chromoly steel arms that are 40% stronger than stock, designed specifically for 1978-87 GM Metric chassis. This kit includes left and right arms with aluminum shafts, greaseable steel bushings, and K5208 ball joints, all finished in durable black paint for enhanced longevity and style.

## Description

Full description not available

## Features

- Robust Construction: Forged from premium 4130 chromoly steel, these oval track racing A-arms provide a whopping 40% more strength than conventional stock steel stamped arms.
- Convenient Design: Seamlessly bolts to your stock mounts, accepting stock type ball joints. The integration saves significant time and reduces additional expenses.
- Comprehensive Kit Details: Includes Speedway Left Side 8.5" Upper Control Arm and Right Side 8" Upper Control Arm, both featuring aluminum cross shafts. Two Speedway 1970-02 GM K5208 Style Upper Ball Joints are also part of the set.
- Sleek Appearance & Durability: Features a premium black painted finish complemented by greaseable steel bushings, ensuring longevity and an aesthetically pleasing look.
- Perfect Compatibility: Specifically crafted to fit 1978-87 mid-size GM Metric chassis, with precise measurements such as 6.875" center-to-center mount and distinct arm lengths for both driver and passenger sides.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Speedway Motors |
| Fit Type | Vehicle Specific Fit |
| Auto Part Position | Center |
| Color | Black |
| Material | Chromoly |
| Orientation | Drivers Side |
| Unit Count | 2.0 Count |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | Speedway Motors |
| Model | Speedway Motors |
| Item Weight | 9 pounds |
| Product Dimensions | 1 x 1 x 1 inches |
| Item model number | 91605025 |
| Exterior | Painted |
| Manufacturer Part Number | 91605025 |

## Product Details

- **Brand:** Speedway Motors
- **Fit Type:** Vehicle Specific Fit
- **Auto Part Position:** Center
- **Color:** Black
- **Material:** Chromoly

## Images

![GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish - Image 1](https://m.media-amazon.com/images/I/41cNCySd80L.jpg)
![GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish - Image 2](https://m.media-amazon.com/images/I/41VceRUH-WL.jpg)
![GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish - Image 3](https://m.media-amazon.com/images/I/41f2LHOv0xL.jpg)
![GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish - Image 4](https://m.media-amazon.com/images/I/41pY03JxPvL.jpg)
![GM Metric Racing Upper Control Arms Kit: 1978-87, 4130 Chromoly, Left 8.5" & Right 8", K5208 Ball Joints, Aluminum Shaft, Steel Bushings, Greaseable Steel Bushings, Black Painted Finish - Image 5](https://m.media-amazon.com/images/I/41umBN+P0bL.jpg)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*