If you’re chasing more steering angle or dialing in sharper response on track, you’ve probably looked into two popular upgrades: inner tie rods and rack spacers. But which one actually improves steering feel — and which one just pushes your limits without solving the real issue?
Let’s break down the key differences and how they affect your build — whether you’re sliding an E36 or dialing in a 370Z.
What Are Inner Tie Rods?
The inner tie rod connects your steering rack to the outer tie rod and knuckle. It moves the most during hard transitions and sees the highest loads during angle driving.
- Controls toe and steering input
- Absorbs shock from aggressive transitions
- Threaded for toe adjustment and tie rod length tuning
What Are Rack Spacers?
Rack spacers sit between your steering rack and the inner tie rod. Their job is simple: extend the rack’s throw to allow more angle. While they work, they come with trade-offs.
- Increase rack travel but don’t add strength
- May bottom out the rack seals over time
- Often introduce bump steer if not matched with suspension geometry
When to Use Rack Spacers
If your setup is near-stock and you're on a budget, rack spacers can add quick angle for low cost. But if you're already running aftermarket knuckles or increased caster, they often overextend the rack and compromise feel.
Why Upgraded Inner Tie Rods Make More Sense
For serious builds, stronger inner tie rods are essential. They provide:
- Extra thread engagement for alignment range
- Stronger construction for durability
- Compatibility with angle kits and relocated pickup points
SLR's inner tie rods are specifically designed for high-angle, high-load applications — like drift and time attack. They’re heat-treated, oversized, and built to integrate with full suspension setups.
Which One Is Right for You?
Use this quick guide:
- Stock angle + budget build: Rack spacers are a cheap upgrade
- Modified geometry + angle kit: Go straight to upgraded inner tie rods
- Pro-level car or competition build: Never trust OEM tie rods — upgrade both inner and outer
Ultimately, rack spacers push your limits. Inner tie rods keep you in control.
Learn more in our full blog on how inner tie rods work — or check out our full lineup of tie rods built to handle big angle.
