If you’ve ever been knee-deep in a swap project, you know the Transmission Crossmember doesn’t always get the spotlight — but it should. It’s the unsung hero that keeps your drivetrain aligned, your transmission supported, and your swap clean.
Whether you’re bolting in a 4L80E, doing a Cummins conversion, or building an LS-powered muscle car, a poorly fitted Crossmember can turn an exciting project into a nightmare of vibrations and bad geometry. That’s where G Force Performance Products Transmission Crossmembers make a difference.
From standard bolt-in designs to their new lightweight Crossmembers, G Force builds solutions that make swaps easier, stronger, and smarter. Let’s dive into some of the most common questions car guys ask about Transmission Crossmembers — and what makes G Force the go-to brand for quality and fitment.
Your Transmission Crossmember supports the rear of your transmission and ties your drivetrain together with the chassis. It maintains your driveline angle, keeps your mount in place, and absorbs drivetrain torque.
The problem? Factory Crossmembers don’t always work when you change transmissions or engine configurations. That’s why G Force designs vehicle-specific and swap-specific Crossmembers — so you can bolt in modern power without fabricating or cutting your frame.
Check out the full Transmission Crossmember Collection for everything from GM and Ford to Dodge and Jeep applications.
When it comes to precision fitment, strength, and clean design, G Force Crossmembers hit all the marks. Each one is CNC-formed from high-grade steel, then black powder coated for corrosion resistance.
Most applications are true bolt-in designs — meaning you can install them with basic hand tools, no cutting or welding required. Their adjustable transmission mount makes driveline angle correction easy and makes sure your setup stays smooth and vibration-free. For situations where the adjustable mounts don’t work, G Force offers a variety of transmission mounts, including their newest mount—an extra low profile (1.375” installed height) )polyurethane GM transmission mount.
G Force also includes hardware and mounting instructions, making installation straightforward for weekend wrenchers and pros alike.
Browse the G Force Crossmember lineup and find the one for your next swap.
When you’re chasing performance, every pound counts. G Force recently introduced their Lightweight Series Crossmembers, engineered to cut weight without cutting corners.
These lightweight Crossmembers are built using high-strength, laser-cut steel that’s strategically reinforced for rigidity while shedding unnecessary mass. The result is a strong, lightweight Crossmember that maintains OEM-level support but saves weight — perfect for racing applications or performance street builds.
You’ll find G Force lightweight Crossmembers available for popular setups like GM A-Body and G-Body swaps.
Each design is optimized for weight reduction, easy fitment, and maximum driveline stability.
Explore the Lightweight Crossmember Series to see how you can drop weight and keep strength where it matters most.
G Force makes it easy to get your swap done right the first time with detailed installation instructions, fitment notes, and informational videos.
You can find:
These resources take the guesswork out of your install, showing real-world examples of how G Force parts bolt in cleanly — with proper clearances for exhaust, driveshaft, and transmission mounts.
Discover what the pros think--watch Fast Monty's review below.
Standard replacement Crossmembers are designed to fit factory drivetrain setups. They’re perfect for refresh builds where you’re sticking with an OEM-style transmission.
Swap Crossmembers, on the other hand, are engineered for guys doing conversions — LS swaps, Cummins conversions, LT swaps, or even Ford Godzilla installs. These Crossmembers are precisely built to match up non-OEM transmission and chassis combinations, keeping your driveline angle correct and your mounts perfectly aligned.
For example:
Absolutely. Every G Force Performance Crossmember is designed, tested, and built by people who live and breathe performance. The fitment is spot-on, the quality is unmatched, and the peace of mind is worth every penny.
Instead of fabricating or cutting your frame, you get a part that bolts up cleanly, keeps your driveline straight, and supports real power — from naturally aspirated builds to boosted setups.
And if you want to shed weight, go with the G Force Lightweight Crossmember — strength, fitment, and weight savings in one solid package.
No matter what you’re building — a classic muscle car, a modern LS swap, or adding power to your pickup — your Transmission Crossmember is the backbone of the drivetrain. Get it right with G Force Performance Products and spend more time driving, less time fabricating.
Before you start your next project, check out:
G Force Performance Products — engineered for swaps, built for car guys.
Ready to swap your transmission Crossmember? Check out our lineup of Crossmembers.