Why Camber Bolts Matter for Your Car’s Stance and Handling

Dialling in the perfect stance isn’t just about lowering springs or wider wheels—it’s about precision geometry. Camber bolts offer a straightforward, cost-effective way to adjust your vehicle’s camber angle without replacing control arms or modifying suspension mounting points. Whether you’re chasing sharper cornering, reduced inside-tire wear on a lowered car, or a more aggressive visual rake, understanding how to use camber bolts correctly is a foundational skill for any DIY enthusiast.

This guide walks you through everything from the bolt’s eccentric design to installation, measurement, and fine-tuning. By the end, you’ll know exactly how to set camber for your driving style, vehicle setup, and road conditions.

What Are Camber Bolts?

Camber bolts (sometimes called eccentric bolts) are specialised fasteners that replace one or more of the factory bolts connecting the strut or control arm to the steering knuckle. Unlike a standard bolt, a camber bolt has a small offset lobe or “eccentric” circle machined into its shank. When the bolt is rotated, this lobe pushes against the mounting hole in the knuckle, shifting the angle of the strut or arm relative to the upright.

The result is a precise, incremental change in camber—typically ranging from ±1.0° to ±2.5° per bolt, depending on the vehicle and bolt design. Most camber bolts are supplied in pairs or sets and include a serrated washer or locking tab to hold the setting once tightened.

Types of Camber Bolts

  • Single-slot eccentric bolts – The most common type, with one eccentric lobe. Simple to install and adjust, but limited range.
  • Double-slot or “washer-style” bolts – Use a slotted washer that rotates with a standard bolt. Often found in OEM or aftermarket kits for vehicles with limited clearance.
  • Offset control-arm bolts (elastomeric or metal) – Used on certain MacPherson strut or multi-link systems where the bolt itself houses a rubber or polyurethane bushing. Provide both vibration isolation and camber adjustment.

Always verify that the bolt you select matches your vehicle’s suspension type (MacPherson strut, double wishbone, etc.) and that its slot or eccentric travel aligns with the desired adjustment direction.

Why Adjusting Camber Matters

Camber angle—the tilt of the wheel when viewed from the front or rear—directly affects three key areas of vehicle dynamics:

Handling and Cornering Grip

Negative camber (top of the wheel tilted inward) increases the tire’s contact patch during cornering. As the car rolls, the outside suspension compresses, and the tire’s contact patch shifts outward. Negative camber compensates for this roll, keeping more rubber on the road. Cars with aggressive track or autocross setups often run –2.0° to –3.5° negative camber in the front. A properly set camber bolt adjustment can transform a car’s turn-in response and mid-corner stability.

Tire Wear

Too much static camber—especially on a street-driven car—wears the inner edge of the tire prematurely. Conversely, too little negative camber (or positive camber) wears the outer edge. Camber bolts let you dial in a setting that balances handling goals with tire longevity. For daily drivers, a modest –0.5° to –1.0° is common; lowered cars often need –1.5° or more to compensate for suspension geometry changes.

Aesthetic Stance

The “stanced” or “flush” look relies on getting the wheel face as vertical as possible at rest while aligning the tire shoulder with the fender lip. Camber bolts are the most accessible way to tilt the wheel slightly inward or outward to achieve that desired top-of-tire clearance. They’re especially useful when aggressive offset wheels push the tire into the inner fender or well.

Tools and Materials Needed

Before you start, gather everything you’ll need. Having the correct tools on hand prevents frustration and ensures safe, repeatable adjustments.

  • Camber bolts specific to your vehicle – Verify compatibility with make, model, and year. Many manufacturers offer “adjustable” bolt kits that replace one of the two strut-to-knuckle bolts.
  • Torque wrench – Essential for tightening bolts to manufacturer specifications. Over-tightening can strip threads or damage the eccentric lobe; under-tightening can allow the bolt to slip.
  • Socket set and combination wrenches – Typically metric (10mm, 12mm, 14mm, 17mm are common). Have both sizes that may fit the bolt head and nut.
  • Car jack and two jack stands – Use a floor jack for stability. Never rely on a scissor jack alone.
  • Wheel chocks – Place behind the rear wheels (if raising the front) and vice versa.
  • Camber gauge or digital angle finder – A magnetic digital inclinometer or a dedicated camber gauge (e.g., Longacre, AccuTune) gives repeatable readings accurate to 0.1°.
  • Straight edge and string (for string line method) – A home-alternative to a gauge; works well if you’re patient and methodical.
  • Penetrating oil (e.g., WD-40, PB Blaster) – Apply to stubborn bolts 15–30 minutes before removal.
  • Shop rags and safety glasses – Suspension work is gritty; protect your eyes and keep parts clean.

Optional but helpful: a pry bar or large screwdriver to coax stubborn control arms into alignment, and a torque-angle attachment if your vehicle requires torque-plus-angle tightening.

Step-by-Step Installation and Adjustment

Every vehicle’s suspension layout is different, but the general procedure for installing front camber bolts on a MacPherson strut system applies to most modern cars. Always consult your vehicle’s service manual for specific torque values and bolt positions.

1. Prepare the Vehicle

Park on a level surface. Engage the parking brake firmly. Place wheel chocks against the opposite wheels (front and rear if raising only one axle). Loosen the wheel lug nuts about half a turn while the car is still on the ground—this makes removal easier once the vehicle is raised.

2. Lift and Support

Position your floor jack under the designated lift point (typically the pinch weld seam behind the front wheel). Raise the vehicle until the tire is off the ground, then place jack stands under the manufacturer’s recommended lifting points (often the subframe or reinforced frame rails). Lower the vehicle onto the jack stands and verify stability before proceeding.

3. Remove the Wheel

Remove the loosened lug nuts, then pull the wheel free. Place it under the car or in a safe spot away from the work area. This gives you full access to the suspension upright, strut, and control arm.

4. Locate the Upper Strut Bolts

On most MacPherson strut setups, two bolts hold the strut fork to the steering knuckle (upright). One of these bolts is the candidate for replacement with a camber bolt. Carefully identify which one—some vehicles only allow adjustment on the top bolt, while others accept both.

If rust or corrosion is present, apply penetrating oil and wait several minutes. Gently work the bolts loose with a socket wrench; avoid excessive force that could damage the surrounding aluminium components.

5. Remove the Original Bolt

Support the knuckle and control arm with a jack or your free hand. Remove the original bolt completely. Note its orientation—the camber bolt’s eccentric lobe must face the correct direction to enable adjustment (usually toward the direction you want to tilt the top of the wheel). Refer to the bolt kit’s instructions; many kits include a diagram showing the proper orientation.

6. Insert the Camber Bolt

Slide the new camber bolt into the hole vacated by the original bolt. If the bolt includes a separate eccentric washer, place it on the bolt so that the washer’s offset aligns with the desired camber movement. Lightly tighten the nut by hand to hold the assembly.

Important: Do not tighten fully yet. The eccentric lobe must rotate freely to set the camber angle.

7. Reassemble the Structure

If the second (non-adjustable) bolt was also removed, reinstall it and torque it to spec. Then loosely install the camber bolt’s nut. With both bolts in place, you can begin preliminary tightening—just enough to prevent movement during the adjustment phase.

8. Initial Torque and Check

Torque the non-adjustable bolt to the vehicle manufacturer’s specification. Then tighten the camber bolt to a lower “snug” value (e.g., ⅔ of full torque) so that the eccentric can still rotate under reasonable hand pressure. Reinstall the wheel (hand-tighten lug nuts) and lower the vehicle to the ground for accurate camber measurement.

Fine-Tuning Your Camber

Accurate measurement is the most critical phase. A 0.1° change can significantly alter handling feel and tire wear patterns.

Measuring Methods

  • Digital inclinometer on a flat surface – Position the gauge against the wheel’s rim face (not the tire sidewall). Zero it on the ground, then read the camber angle. Repeat on both sides for consistency.
  • String line with a camber bubble gauge – Stretch a string parallel to the car’s centreline, or use a commercial camber gauge that clamps to the wheel lip. Follow the gauge’s instructions to align the bubble.
  • Dedicated alignment system (e.g., Hunter Quick Check) – Many DIYers can access basic alignment tools at a friend’s garage or a rental bay. This gives the most reliable results.

Take your initial reading. Compare it to your target camber (e.g., –1.5° front). If the current reading is –0.8°, you need to rotate the camber bolt in the direction that increases negative camber.

Adjustment Technique

Loosen the camber bolt just enough to rotate the eccentric lobe. Use a large flat-blade screwdriver or a special eccentric bolt tool to turn the lobe while watching the inclination gauge. Turn in small increments—10° of lobe rotation typically changes camber by about 0.25°. Recheck the reading after each tiny turn.

Once you hit the target angle, hold the lobe steady and torque the bolt nut to the manufacturer’s specification. Many bolts require 40–60 ft-lb (55–80 Nm); consult the kit’s instructions. After torquing, re-measure to confirm the setting hasn’t shifted. Repeat on the opposite side.

Setting Cross-Camber

Aim for left and right camber to be within 0.2° of each other. Unequal camber causes the car to pull to the side with more positive camber (or less negative). If your vehicle requires even cross-camber for drag or straight-line stability, precise adjustment is crucial.

Common Pitfalls and How to Avoid Them

Incorrect Bolt Orientation

Installing the camber bolt backwards (eccentric lobe facing away from the direction of adjustment) yields no measurable change. Always align the lobe with the slotted hole in the knuckle or strut bracket. If you rotate the bolt 180° and get no movement, flip it.

Overtightening Before Final Torque

If you fully torque the bolt before fine-tuning, you will likely damage the eccentric lobe or the knuckle’s mounting hole. Torque only after you’ve set the desired angle.

Using the Wrong Bolt Diameter

Camber bolts are available in several diameters (10mm, 12mm, 14mm). A bolt that is too small will rattle loose; one that is too large may not seat properly or could damage the knuckle. Measure the factory bolt’s diameter and length.

Ignoring Toe Changes

Changing camber affects toe. After you adjust camber, the steering wheel may be off-centre, and toe-in/toe-out will shift. If possible, measure and reset toe after your camber adjustment. Many alignment shops can do this inexpensively if you’ve already set the camber yourself.

Pro tip: Mark the original bolt’s position with a paint pen before removal. This gives you a visual baseline to return to if your first adjustment overshoots.

When to Seek Professional Help

Camber bolts are a great DIY-friendly upgrade, but some situations warrant a professional alignment or installation:

  • Your vehicle has independent rear suspension that uses special eccentric bolts or camber arms; the procedure may require specialised tools.
  • The bolts refuse to turn due to rust or corrosion, or you cannot get the camber to change despite correct installation.
  • You need a full alignment (camber, caster, toe) after installation and lack access to a machine that measures caster.
  • The vehicle has air suspension or an aftermarket kit that alters suspension mounting points.

A professional alignment typically costs $80–$150 and includes adjusting camber, caster, and toe to within factory or custom specs. For most enthusiasts, it’s money well spent to confirm your work.

For more in-depth technical details and vehicle-specific guides, consult the following:

Conclusion

Camber bolts give you a precise, repeatable way to adjust your car’s stance without expensive fabrication or permanent modifications. By understanding how the eccentric lobe works, measuring carefully, and following a methodical installation sequence, you can achieve the camber angle that complements your driving style—whether that’s aggressive track handling, comfortable daily cruising, or a show-ready static fit.

Patience pays off. Start with small changes, measure twice, and torque once. Over the next few miles, pay attention to how the car behaves: turn-in response, steering weight, and tire wear patterns will tell you if you’ve hit the sweet spot. With the right camber bolt setup, your car will handle better, wear more evenly, and look exactly how you imagined.