2017 GMC Sierra 2500HD - Wheel Alignment Specifications

Quick reference

Adjustability

On the 2017 GMC Sierra 2500HD, various alignment angles can be adjusted to optimize handling, tire wear, and stability. From the factory, the front camber and caster adjustments are made using cam bolts located on the lower control arm mounts. This allows for a reasonable range of adjustment to bring these critical angles within specification. Front toe, both total and individual, is adjusted via the tie rod ends. This is a common and straightforward adjustment on most vehicles, and the Sierra 2500HD is no exception.

At the rear, the solid axle design of the Sierra 2500HD means that camber and caster are generally non-adjustable from the factory. If these angles are found to be out of specification, it typically indicates a bent axle housing, damaged suspension components, or a compromised frame, requiring more in-depth diagnosis and repair. Rear toe, however, can sometimes be adjusted within a limited range if aftermarket shims or specialized brackets are installed. The thrust angle, which indicates if the rear axle is tracking straight with the front, is primarily influenced by rear toe and any structural damage.

Recommended adjustment hardware

While the factory cam bolts offer some degree of adjustment for front camber and caster, heavy-duty trucks like the Sierra 2500HD often benefit from enhanced adjustability, especially after suspension modifications (e.g., lift kits) or if wider adjustment ranges are needed to correct significant pull issues. Many alignment technicians recommend aftermarket eccentric cam bolt kits, such as those from SPC or Moog, which can offer a wider range of camber and caster adjustment compared to OEM components. These kits typically replace the factory cam bolts and provide more precise control over the alignment angles. For the rear axle, if toe adjustment is desired beyond factory non-adjustability, specialized eccentric bushings or shims may be available from aftermarket manufacturers, though their installation often requires more labor. Always consult with a qualified alignment technician to determine the best hardware solutions for your specific vehicle and needs.

Symptoms of bad alignment

Several tell-tale signs indicate your 2017 GMC Sierra 2500HD may be in need of an alignment. One of the most common symptoms is uneven tire wear. If the outer edges of your tires are wearing down significantly faster than the center, or vice versa, this can point to excessive positive or negative camber. A feathered wear pattern, where the tread blocks are worn smooth on one side and sharp on the other, is often indicative of incorrect toe settings (either too much toe-in or toe-out). Cupping or scalloping on the tires can suggest issues with worn suspension components, but can also be exacerbated by alignment problems.

Beyond tire wear, you might experience steering issues. The truck may pull to one side while driving on a flat road, requiring constant steering input to keep it going straight. The steering wheel might not return to center easily after a turn, or it could feel loose or imprecise. Vibrations through the steering wheel, while often related to tire balance, can also be a symptom of severe alignment issues, especially excessive toe. If you notice any of these symptoms, it's wise to have your alignment checked promptly to prevent further tire wear and potential safety concerns.

When to align

Regular alignment checks are crucial for maintaining the performance and longevity of your 2017 GMC Sierra 2500HD. You should definitely get an alignment after any significant suspension or steering component replacement, such as tie rod ends, control arms, ball joints, or shocks/struts. Even minor impacts, like hitting a large pothole or curb, can throw your alignment out of whack and warrant a check. Installing new tires is another excellent opportunity for an alignment, as it ensures you get the most life out of your new rubber. Furthermore, if you notice any of the "symptoms of bad alignment" mentioned above, don't delay in getting it checked. As a general rule of thumb, it's recommended to have your alignment inspected at least once a year or every 12,000 to 15,000 miles, even if you don't experience any noticeable issues.

Typical alignment cost

The cost of a wheel alignment for a 2017 GMC Sierra 2500HD can vary depending on your geographic location, the type of shop, and whether any extra adjustments or parts are needed. Generally, you can expect to pay anywhere from $80 to $150 for a standard four-wheel alignment. If your vehicle requires specialized adjustments, such as those involving aftermarket cam bolts, or if seized components need to be freed or replaced, the cost could be higher. Some shops offer alignment packages with new tire purchases, which can sometimes provide a discount. Always inquire about what is included in the alignment service, such as before-and-after printouts of your alignment angles, to ensure you're getting a thorough job.

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