Improve Steering Alignment with CPP Rack & Pinion Extenders
When installing a custom front suspension—especially with Mustang II-style crossmembers—one of the most overlooked components is the steering rack's width. If your wheels are toed in, and you’re running out of adjustment on your tie rods, there’s a good chance you need rack extenders.
Classic Performance Products offers precision-machined rack extenders for both manual and power rack and pinion setups, helping correct steering geometry by increasing the rack’s total width. Whether you're working with a Heidts, Fatman, or TCI front end, these extenders are a must-have for dialing in proper alignment and maximizing tie rod thread engagement.
What Rack Extenders Do
Rack extenders thread into the end of the rack and pinion shaft, essentially shifting the inner tie rod outboard to match the control arm pivot points. This adjustment helps reduce bumpsteer and ensures your tie rods aren’t dangerously close to bottoming out or running out of threads.
CPP offers extenders in 1", 2", and even 4" lengths depending on your application. Some setups require extenders on both sides of the rack, while others only need one—common on driver’s side installations with certain TCI kits.
Installation Highlights
Installing a rack extender is straightforward and can be done with the rack on the vehicle or on a workbench:
1. Remove the rubber boot and inner tie rod.
2. Apply blue thread-locker and install the rack extender.
3. Thread the inner tie rod into the extender with additional thread-locker.
4. Reinstall the rubber boot and clamp.
Critical Instillation Note:
It’s critical to check clearance throughout the full range of steering and suspension movement to ensure nothing contacts brake hoses, calipers, or other components. The installer also needs to make sure none of the steering or braking components can become bound or jammed at any time through the range of suspension or steering movement.
Which One Do You Need?
Here’s a quick reference and general recommendations:
Want to see it done? Check out this installation video.
For complete fitment data, download our tech guide or give us a call—we’re happy to walk you through it.
