Insider advice on getting the most from Nissan

How to Identify GM Steering Column: Essential Insights for Auto Enthusiasts

Essential Information

  • If you’re diving into the world of classic car restoration or simply need to replace a steering column in your GM vehicle, knowing how to identify the specific model you’re dealing with is crucial.
  • The first step in identifying a GM steering column is determining the vehicle’s year and model.
  • The first three characters of the VIN indicate the manufacturer, in this case, “GM,” and the following two digits represent the year of manufacture.

If you’re diving into the world of classic car restoration or simply need to replace a steering column in your GM vehicle, knowing how to identify the specific model you’re dealing with is crucial. This knowledge ensures you get the right parts, understand its compatibility, and even unveil its potential value. This comprehensive guide will equip you with the tools and knowledge to confidently identify any GM steering column.

Understanding the Basics: What Makes a GM Steering Column Unique?

GM steering columns, while sharing fundamental components, come in a wide variety of configurations. These variations are driven by factors like the vehicle’s year, model, trim level, and even the type of transmission. Each component plays a vital role in steering, safety, and overall functionality.

Key Components to Focus On:

  • Steering Column Shaft: This is the central axis, connecting the steering wheel to the steering gear.
  • Steering Column Housing: This encloses the shaft and houses the steering column’s internal mechanisms.
  • Steering Column Gear: This is the mechanism that converts the rotational motion of the steering wheel into linear motion for the steering linkage.
  • Steering Column Switch Assembly: This houses the turn signal, windshield wiper, and other essential controls.
  • Steering Column Lock Cylinder: This secures the steering wheel when the vehicle is parked.

Identifying the Year and Model: Deciphering the Clues

The first step in identifying a GM steering column is determining the vehicle’s year and model. This information is crucial for selecting compatible parts and understanding the column’s specific features.

Here’s how to find this information:

  • VIN Number: The Vehicle Identification Number (VIN) is a 17-character code located on the driver’s side dashboard or on the driver’s side door jamb. The first three characters of the VIN indicate the manufacturer, in this case, “GM,” and the following two digits represent the year of manufacture.
  • Dash Plate: Many GM vehicles have a dash plate located on the driver’s side of the dashboard. This plate often displays the vehicle’s year, model, and trim level.
  • Engine Compartment: You might find a sticker or tag attached to the engine compartment, containing the vehicle’s year and model information.

Visual Inspection: Spotting the Telltale Signs

Once you’ve established the year and model, a visual inspection can reveal key characteristics of the steering column:

  • Column Housing Shape: The shape of the steering column housing can vary significantly between different models and years. Pay attention to the overall contour, the location of the steering column switch assembly, and the presence of any distinctive features.
  • Steering Column Shaft: Examine the shaft’s diameter, length, and any markings or grooves.
  • Steering Column Switch Assembly: The design and layout of the switch assembly can be a reliable indicator of the steering column’s specific model.
  • Steering Column Gear: While not always visible, the steering column gear’s design can be a clue, especially if it’s a manual steering system.

Using Online Resources: Harnessing the Power of the Web

The internet is a treasure trove of information when it comes to identifying GM steering columns. Several online resources can help you narrow down your search and find the correct part:

  • Online Parts Catalogs: Websites like GMPartsDirect.com and RockAuto.com offer extensive online parts catalogs. By entering your vehicle’s year, make, and model, you can access detailed diagrams and part numbers for your steering column.
  • Online Forums and Communities: Online forums dedicated to classic car restoration and automotive repair can be a valuable source of knowledge. Members often share their expertise and provide guidance on identifying specific steering columns.
  • Online Databases: Some websites offer dedicated databases for identifying classic car parts, including steering columns. These databases often include detailed descriptions, images, and even compatibility information.

Consulting with Experts: Getting Professional Assistance

If you’re still unsure about identifying your GM steering column, seeking professional assistance can be a wise move.

  • Local Auto Parts Stores: Experienced staff at local auto parts stores can often help you identify your steering column based on the vehicle’s year, model, and visual inspection.
  • Classic Car Restoration Shops: Specialists at classic car restoration shops have extensive knowledge of GM vehicles and can provide expert guidance on identifying and sourcing the correct steering column.

Final Thoughts: Ensuring a Smooth Ride

Identifying a GM steering column is a crucial step in ensuring a safe and comfortable driving experience. By meticulously examining the vehicle’s information, visually inspecting the column, and leveraging online resources and professional expertise, you can confidently determine the specific model you’re working with. This knowledge empowers you to choose the right parts, restore your classic car, or simply maintain your vehicle’s steering system.

What You Need to Learn

Q: What are the differences between GM steering columns from different years?

A: GM steering columns can vary significantly between different years due to advancements in technology, safety regulations, and design changes. For instance, older columns might have a simpler design and fewer safety features, while newer columns often incorporate features like tilt steering, cruise control, and electronic controls.

Q: Are GM steering columns interchangeable between different models?

A: While some GM steering columns might share similarities, they are not always interchangeable between different models. Compatibility depends on factors such as the vehicle’s year, body style, and transmission type. It’s essential to consult with a parts catalog or a knowledgeable mechanic to ensure compatibility.

Q: How can I tell if a GM steering column is original or aftermarket?

A: Original GM steering columns often have a manufacturer’s part number stamped or etched onto the housing. You can compare this number to online parts catalogs or manufacturer databases to verify its authenticity. Aftermarket columns might have different markings or lack specific features found on original parts.

Q: What are the signs of a worn-out GM steering column?

A: Signs of a worn-out steering column include excessive play in the steering wheel, difficulty turning the wheel, loose steering, clunking or grinding noises when turning, and malfunctioning steering column controls. If you notice any of these issues, it’s crucial to have the column inspected and repaired.

Q: What are the safety considerations when working with a GM steering column?

A: Working with a GM steering column requires caution, as it’s a critical safety component. Always disconnect the battery before working on the steering column to avoid electrical shocks. Use proper tools and techniques to prevent damage or personal injury. If you’re unsure about any aspect of the repair, consult with a qualified mechanic.

Was this page helpful?No
BJ
About the Author
My name is Bob Jenkins and I'm thrilled to share my automotive adventures with you here on mphdiary.com. Cars have always been a passion of mine, especially sporty yet practical Japanese models. For the past 10 years, I've been driving various Nissan vehicles and am constantly enjoying learning more about...