Introduction: A bump steer kit is a key upgrade for G-body cars to restore predictable steering as the suspension compresses and rebounds. This guide highlights select kits best suited for Ford Mustang G-body models and similar platforms from 1979 to 1993. The top picks aim to reduce uneven tire wear and improve steering feel for lowered or performance-tocused builds. The following table summarizes the five recommended options, along with core strengths for different buyer needs.
| Product | Brand | Best For | Notable Strength |
|---|---|---|---|
| BoCID Adjustable Maximum Power Bump Steer Kit | BoCID | Power Rack Mustangs, GT V8, lowered setups | Heavy-duty aerospace aluminum construction |
| Bevinsee Maximum Bump Steer Kit | Bevinsee | Durable, CNC-machined accuracy for 79-93 Mustangs | Two bolt lengths; strong Grade 9 hardware |
| Bevinsee Adjustable Outer Tie-Rod Ends | Bevinsee | Manual rack Mustangs; precise bump adjustment | Extremely wide adjustment range |
| BMR Street Version Bump Steer Kit | BMR | Street/track-day drivers needing durable kit | Impact-resistant construction |
| Allstar Performance Allstar-56286 Bump Steer Kit | Allstar Performance | Budget-conscious builds needing simple setup | Compact packaging with adjustable ends |
Below are detailed sections for five carefully chosen kits. Each entry explains who benefits most, why the kit was chosen, and any practical limitation to consider. Use the Buying Guide toward the end to compare installation needs, adjustability, and compatibility with your specific G-body setup.
BoCID Adjustable Maximum Power Bump Steer Kit
The BoCID kit is tailored for Ford Mustang GT V8 setups with power rack steering. It uses a 5/8×18 thread and aerospace aluminum for the main body, with hard chrome plated ball components and a heat-treated rod end assembly. Best for lowered cars seeking robust, long-term durability and a direct bump steering correction method.
Best for: Projects using power rack Mustangs and lowered suspensions where steering predictability matters most. This option provides strong materials and a clear approach to removing bump steer headaches. A potential limitation is the higher material complexity which may require careful alignment during installation.
Bevinsee Maximum Bump Steer Kit
This Bevinsee kit uses a robust Cr-Mo steel spacer and Grade 9 bolts, with CNC-machined accuracy for a precise bump steer correction. It’s a strong choice for 79-93 Mustangs and Roush/Saleen builds needing dependable outer tie-rod stabilization.
Best for: Drivers prioritizing rigidity and durability in a single kit with reliable fasteners. Caution: installation requires accurate torque and alignment to ensure the spacer works as intended.
Bevinsee Adjustable Outer Tie-Rod Ends
This Bevinsee kit emphasizes two lengths of 5/8″ Grade 9 bolts and 7075 aluminum spacers with 9/16″-18 SAE thread for compatibility with inner tie rods from 1979-93 Mustangs. It offers a wide adjustment range that suits varied ride heights and alignment targets.
Best for: Builders needing broad adjustability and a lighter, precise outer tie-rod arrangement. Limitations: 7075 aluminum parts may require careful handling to avoid contact with heat in some engine bays.
BMR Street Version Bump Steer Kit
The BMR Street Version focuses on durability for everyday street use with improved grip and handling. It emphasizes an impact-resistant construction and protection for tool housings, making it suitable for daily-driven G-body cars that see occasional track use.
Best for: Daily drivers wanting improved steering consistency and longevity. Caution: It may be less optimized for extreme racing setups where ultra-fast telemetry-grade adjustments are needed.
Allstar Performance Allstar-56286 Bump Steer Kit
Allstar’s kit provides compact packaging with adjustable outer tie-ends, designed for straightforward setup and compatibility with common 4-jet setups. It is positioned as a practical option for budget-conscious builds seeking simple bump steer correction.
Best for: Budget-minded builders needing a straightforward, install-friendly kit. Limitation: May offer fewer high-end adjustments compared to premium kits, depending on the specific vehicle configuration.
Buying Guide: Key Considerations For G-Body Bump Steer Upgrades
- Vehicle compatibility: Confirm year range (1979–1993) and whether the kit suits manual or power steering racks on your Mustang or G-body model.
- Material and hardware: Look for aerospace aluminum, heat-treated steel, or Grade 9 bolts for long-term durability under load.
- Adjustability: Consider the range of bump steer adjustment and whether outer tie-rod ends or spacers provide the needed precision for your alignment goals.
- Installation complexity: Some kits require precise alignment and torque specifications; ensure you have the tools and space for proper mounting.
- Usage scenario: Choose a kit aligned with your driving style—daily driving, street/track use, or pure performance coaching on the track.
Frequently Asked Questions
- What is bump steer and why is it a problem? – Bump steer occurs when suspension compression changes the toe angle, causing steering responses to deviate from the driver’s input, leading to unpredictable steering and uneven tire wear.
- Do these kits fit all G-body models? – Most kits target late 70s to early 90s G-body Mustangs and similar platforms; always verify compatibility with your exact year and rack type.
- Which kit is best for daily driving? – For daily driving with durability and ease of use, the BMR Street Version or Allstar Budget kit offer solid balance between performance and practicality.
- Is higher adjustment range always better? – Not necessarily; the ideal range depends on your suspension geometry and ride height. Excessive adjustment may complicate alignment.
- Do I need professional installation? – If you lack suspension alignment experience, professional installation ensures correct torque, thread engagement, and proper alignment setup.