C2/C3 Steering Upgrade: Why Borgeson Beats Factory Power Assist (And Why We Skip Rack & Pinion)

Here is the definitive guide to modernizing the steering feel in your 1963-1982 Corvette without losing its soul.

If you drive a 1963-1982 Corvette, you know the feeling. You’re cruising down the highway, the V8 is humming, but your hands are constantly busy. You are "sawing" at the wheel—correcting left, then right, just to keep the car going straight. There’s two inches of play in the center before the wheels actually turn, and when you park, you leave a signature puddle of power steering fluid on the driveway.

This is the reality of the factory "power assist" steering system. It was innovative in the 1960s, but by today's standards, it’s vague, leak-prone, and overly complex.

At Van Steel, we get asked constantly about the best way to fix C2 and C3 steering. For the vast majority of owners who actually drive their cars, the answer is clear: The Borgeson Power Steering Conversion Kit.

Here is a deep dive into why the Borgeson retrofit is the gold standard for vintage Corvettes, what’s involved in the install, and why we generally steer customers away from rack and pinion conversions.

The Problem with Factory "Power Assist"

To understand why the Borgeson kit is better, you need to understand what you currently have.

C2 and C3 Corvettes don't have true modern power steering. They have a manual steering box connected to a set of hydraulics external of the steering box. This includes a pump, a control valve, a slave cylinder, and four separate hydraulic hoses mounted down low where they are vulnerable to road debris.

The Flaws:

• Too Many Wear Points: Between the steering box gears, the rag joint, and the ball studs in the control valve, slack develops everywhere. This creates the infamous "dead spot" in the center of the wheel.

• Leaks are Inevitable: The control valve and slave cylinder are notorious for developing leaks that are difficult to seal permanently.

• Slow Ratio: The factory steering ratio is slow (typically 16:1), requiring many turns of the wheel to navigate tight corners.

The Solution: The Borgeson Conversion

The Borgeson conversion kit modernizes your Corvette by eliminating the complex 1960s hydraulics. It replaces your original manual steering box with a modern, remanufactured Delphi style integral power steering gearbox.

"Integral" means the power assist happens inside the steering box, just like a modern truck or rear-wheel-drive car.

The Benefits of Borgeson:

1. Modern Feel and Feedback: This is the biggest game-changer. The Delphi box provides real road feel. It’s firm on center, so the highway wandering disappears (from the steering box, not from lack of caster), but provides smooth assist when parking.

2. Faster Ratio: The Borgeson box features a quick 12.7:1 ratio. The car feels significantly more nimble and responsive during cornering. You turn the wheel less to get the same result.

3. Simplicity (Goodbye Leaks): You remove the leaky control valve, the slave cylinder, and two hoses. The system is vastly simplified, reducing potential leak points by half.

4. Bolt-In Design: The box bolts directly to the frame in the stock location.

Installation Realities: What to Expect

While Borgeson advertises this as a "bolt-on" kit for all 1963-1982 models, "bolt-on" doesn't always mean "easy."

There are common hurdles during installation that owners need to be prepared for:

1. The Steering Column Challenge (The Big One) The Borgeson box is slightly longer than the stock box. Therefore, your stock steering column shaft must be shortened to connect to it.

• Late C2s and C3s ('67-'82): These have collapsible columns (wax filled) that can usually be tapped down with a hammer to create the necessary clearance.

• Early C2s ('63-'66): You will likely need to physically cut down the inner steering shaft. This intimidates many DIY mechanics.

2. Header Clearance If you are running aftermarket long-tube headers, or have a big block C2/C3, things get tight. The larger Borgeson box occupies more space near the exhaust. Sometimes you have to dimple a header tube for clearance. If ordering headers, specifically ask if they clear a Borgeson steering box. Some are building them around these slightly longer boxes. 

3. Pulleys and Brackets Depending on your specific engine setup (A/C, alternator configuration), aligning the power steering pump belt correctly with the new bracketry can sometimes require shimming or minor fabrication.

The "Other" Option: Why We Avoid Rack & Pinion

When looking to upgrade steering, the other option you will see advertised is a Rack and Pinion conversion (like Steeroids or Flaming River systems). On paper, Rack and Pinion seems like the ultimate modern upgrade.

However, at Van Steel, we generally advise against Rack and Pinion for street-driven Corvettes and must avoid for autocross and track usage.

Why Van Steel Prefers Borgeson over Rack & Pinion (R&P):

• The "Numb" Driving Experience: This is the primary reason. While Rack and Pinion is very direct, aftermarket kits for C3s often feel over-boosted and completely numb. It disconnects you from the road. We liken it to an old-school arcade racing game—you turn the wheel, and the car turns instantly, but you feel absolutely nothing through your hands. 

• Cost: Rack and pinion conversions are significantly more expensive than Borgeson kits, often double the price or more once installed. When comparing cost, make sure to include all new tie rod ends, new HD adjustment rods and idler arm. 

• Invasive Installation: While some kits are bolt in, others require cutting and ensuring all the components are in their ideal position for your chassis. 

• Bump Steer Issues: If not set up with absolute mathematical precision, aftermarket R&P kits can introduce "bump steer" (where the suspension travel causes the car to steer itself over bumps), making the car terrifying at speed.

The Verdict

If you want your Corvette to steer like a 2024 sports car, buy a C8.

But if you want your classic Corvette to handle confidently, stop wandering all over the road, stop leaking on your driveway, and still feel like a modern version of it's classic self, the Borgeson conversion is the best bang-for-your-buck upgrade you can make to your chassis. It tightens everything up without sterilizing the driving experience. Pair the Borgeson unit with Van Steel's tubular upper control arms (or complete tubular coilover conversion kits) for the ultimate in handling and steering for the C2/3 factory chassis.