Menu

Shop

Garage

Cart

Account

Products to Compare (max of 3)
X
Compare These Parts

Control Arm Upgrade

9/16/2016
Add Article To List

Follow along as Speedway Motor's employee Steve L. takes a look at upgrading his control arms on his Laguna project.

One of the best suspension upgrades a person can make to their car is tubular control arms. The main advantages are weight, strength, and appearance. Weight is a huge factor when it comes to a performance vehicle, the lighter the vehicle the less horsepower it takes to move it. Let's face it anything that looks better is an obvious bonus too. Besides a stock control arm is bulky and not an attractive part in the first place. The geometry from the factory was a compromise between performance, and drivability. With any compromise there can always be improvement. This is where the Speedway Motors 1970-1981 Upper Control Arm, P/N 910-34397 comes in. I'm using these on my 1976 Chevrolet Laguna S3 that I'm building for autocross competition. The 1970-‘81 Chevrolet Camaro and the 1973-‘77 Chevrolet Malibu, Laguna, and Monte Carlo all share the same upper and lower control arms. This is a huge benefit for the owners of Generation III GM A-Body cars. The Stock GM upper control arm weighs in at a hefty 10 pounds per side.

The Speedway Motors 1970-1981 Camaro Upper Control Arm, Speedway P/N 910-34397 is not only a very nice looking piece, but it's also very strong and lightweight as well. It weighs in at only 6 pounds each, that's a savings of 4 pounds per side and 8 pounds total off the front of your car. This is very important when building an autocross car to help reach the optimum 50/50 weight percentage. This control arm is designed for race applications, so the stock ball joint will not fit. It comes as the control arm only, and does not come with ball joints. There are several ball joints available that you could use for these control arms. Most ball joints are referenced by the MOOG style number; these use a K6136 or a K6024 style ball joint. If you're building a competition vehicle, it would be wise to look in to using a performance ball joint that is rebuild-able and offered with extended studs in various lengths to optimize your front suspension geometry. These control arms also do not have bushings, they are steel against steel construction, but are serviceable. So they are not recommended for street use, since without bushings they will wear out rather quickly on the street. The following pictures are the GM and the Speedway one side by side and then fitted with a QA1 ball joint installed on my Laguna.

Products Featured in this Article

Related Articles

Understanding Shock Types and What Is Best for Your Project
by Mark Houlahan - Posted in Tech
6/3/2022
Shocks and struts may be confusing, but our buyer's guide is here to help you make sense of all the options.
Model A I Beam Front Axle Install
by Speedway Tech Team - Posted in Tech
3/6/2018
Our hot rod expert takes you through his ford I beam axle setup. Follow as he sets up the front end on his split wishbone front suspension Model A.
Selecting the Right Coil-Over for Your T-Bucket
by Speedway Tech Team - Posted in Tech
6/15/2017
Speedway Motors shares a How-To of selecting the right coilovers for your T-Bucket.
How to Build a DIY 3 link Suspension
by Speedway Tech Team - Posted in Tech
12/6/2016
Learn how to build your own 3 Link Suspension. Our expert goes over his process for building a custom adjustable 3-link rear suspension for his 1967 Cougar.
Do I Need A Panhard Bar?
9/19/2016
Do you need a Panhard Bar on your front suspension? Find out whether its recommended to have one on your four-bar or cross steering system.
Ford And Chevy Spindle Options For Solid Axle Hot Rods
by Speedway Tech Team - Posted in Tech
4/4/2022
Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod.
Coilover Spring Rate Chart - Selection and Installation
by Speedway Tech Team - Posted in Tech
8/1/2017
Learn how to select the right Coilover shocks for your street rod. Us our chart to find the correct spring rate and get some install tips from the experts.
Stallard SST Front Axle Installation
by EMi Tech Team - Posted in Tech
6/29/2017
Eagle Motorsports, Inc. put together a how-to video on installing their Stallard SST Front Axle Assembly.
Stallard SST Rear Axle Installation
by EMi Tech Team - Posted in Videos
6/29/2017
Eagle Motorsports, Inc. put together a how-to video on installing their Stallard SST Rear Axle Assembly.
Installing Torsion Bars in Street Rods
by Speedway Tech Team - Posted in Tech
7/1/2019
Choosing the right suspension products when building your street rod or custom car. A step by step on how to determine which parts are needed for installation, how to calculate the spring rate and other helpful tips along the way.