Spare Tire Hoist Assembly: A Comprehensive Guide

A spare tire hoist assembly securely stores a spare tire under a vehicle, using a crank mechanism to lower and raise it as needed. Regular maintenance, like cleaning and checking for rust, keeps it functioning smoothly.

The spare tire hoist assembly is a critical but often overlooked component of any vehicle that carries a spare tire underneath the car or in the trunk. This assembly helps secure the spare tire to the vehicle, allowing you to access it quickly when needed without occupying precious trunk space. For vehicle owners, knowing how this component works, how to maintain it, and what issues to look for can be incredibly helpful.

In this post, we’ll take a closer look at the spare tire hoist assembly, its function, common problems, maintenance tips, and address some frequently asked questions related to this important component.

What Is a Spare Tire Hoist Assembly?

A spare tire hoist assembly is a mechanical device installed in many vehicles, particularly trucks, SUVs, and some larger sedans, that allows the spare tire to be stored underneath the vehicle’s body or at the rear in a compact and accessible way. Typically, the hoist is connected to a cable system that can be lowered to the ground when the spare tire is needed, then wound back up to secure the tire when not in use. This system saves space inside the vehicle, making it a convenient solution for carrying a spare tire.

Key Components of a Spare Tire Hoist Assembly

The spare tire hoist assembly consists of several main components:

1. Hoist Mechanism: This includes the primary mechanism used to lower and raise the tire. It’s typically operated by a crank or tool that rotates a spool, allowing the cable to unwind or wind back up.
2. Cable: The cable is responsible for holding the spare tire and can be made of durable metal to support the weight of the tire securely.
3. Mounting Bracket: The bracket holds the hoist to the underside of the vehicle.
4. Crank Shaft and Hook: The crank shaft connects to the cable, often with a hook or similar connector to hold the tire in place securely.

This system’s efficiency and compact nature make it a popular choice among manufacturers for vehicles with a spare tire placed outside of the cabin.

How Does a Spare Tire Hoist Assembly Work?

The spare tire hoist assembly works through a simple but effective winding mechanism. Here’s how it functions:

1. Lowering the Tire: To access the spare tire, the driver uses a special tool or crank (often included with the vehicle’s toolkit) to unwind the hoist mechanism. This causes the cable to lower, bringing the tire closer to the ground.
2. Removing the Tire: Once the tire is on the ground, the cable’s hook or other attachment point can be unlatched, freeing the tire from the hoist.
3. Reattaching and Storing the Tire: After replacing or using the spare tire, the owner can secure the replacement back onto the hoist’s hook. By cranking the hoist mechanism in the opposite direction, the cable retracts, lifting the tire back into place.

While simple, this system allows for quick and convenient access to the spare tire.

Common Problems with Spare Tire Hoist Assemblies

Spare tire hoist assemblies are generally durable, but they can develop issues over time due to regular use, exposure to the elements, and general wear and tear. Here are some common problems:

Cable Corrosion

• Cause: Over time, the cable can become corroded, especially if the vehicle is frequently exposed to rain, snow, or salty road conditions.
• Impact: A corroded cable may snap, making it impossible to retrieve the spare tire or, worse, causing the tire to fall while driving.

Hoist Mechanism Jamming

• Cause: Dust, grime, and rust can accumulate within the hoist mechanism, causing it to jam or operate less smoothly.
• Impact: A jammed hoist mechanism can make it difficult or impossible to lower the tire when needed.

Broken or Lost Crank Tool

• Cause: The crank tool, typically specific to the vehicle, may be misplaced or damaged.
• Impact: Without the proper tool, it can be challenging to operate the hoist.

Cable Slippage

• Cause: A worn or improperly lubricated hoist mechanism can result in cable slippage.
• Impact: This reduces the effectiveness of the hoist, as the cable might not retract or lower properly.

Detachment from Vehicle Frame

• Cause: Over time, bolts or other connectors that hold the hoist to the vehicle frame may loosen or break.
• Impact: A loose hoist can cause rattling noises and may even detach from the vehicle, especially on rough terrain.

Maintenance Tips for a Spare Tire Hoist Assembly

Maintaining your spare tire hoist assembly can extend its lifespan and ensure that it functions properly when you need it. Here are some maintenance tips:

Inspect Regularly

• Frequency: Check your spare tire hoist assembly at least twice a year.
• What to Look For: Inspect the cable for signs of corrosion or wear, ensure the hoist mechanism operates smoothly, and verify that all bolts and attachments are secure.

Lubricate the Mechanism

• Frequency: Apply lubricant once every 6-12 months or as needed.
• Process: Use a light lubricant to keep the hoist mechanism and crank shaft moving smoothly. Avoid excessive lubrication, as this can attract dirt and cause jamming.

Clean the Assembly

• Frequency: Clean the hoist assembly annually or whenever you perform an oil change.
• Process: Remove dirt and debris using a cloth and mild cleaning solution. Avoid using water directly on the assembly, as this can contribute to rust.

Use Rust-Resistant Coatings

• Benefit: Coating the cable and metal parts with a rust-resistant spray can help protect the assembly from corrosion, especially in harsh climates.

Check the Crank Tool

• Frequency: Verify its condition during each inspection.
• Replacement: If the crank tool is damaged or missing, purchase a replacement specific to your vehicle’s model.

How to Replace a Spare Tire Hoist Assembly

If your spare tire hoist assembly is damaged or corroded beyond repair, it may be time to replace it. Follow these steps:

1. Raise the Vehicle: Use a jack to safely lift the vehicle and access the spare tire hoist assembly.
2. Remove the Spare Tire: Use the hoist mechanism to lower the spare tire to the ground, detaching it from the hoist.
3. Detach the Old Hoist Assembly: Unscrew the bolts holding the hoist to the vehicle frame. Remove any remaining parts of the assembly, including the cable and mounting bracket.
4. Install the New Hoist Assembly: Place the new hoist in position, securing it with bolts. Ensure it is tightly fastened to avoid rattling or detachment.
5. Test the New Hoist: Attach the spare tire to the new hoist and ensure it functions smoothly by raising and lowering the tire.

Related Article
Are Spare Tires Required by Law?
How Fast Can You Drive on a Spare Tire?
Are Spare Tires Interchangeable?
Why No Spare Tire in New Cars?

Frequently Asked Questions

Here are some FAQs about spare tire hoist assembly –

Conclusion

The spare tire hoist assembly is a valuable component that keeps your spare tire secure yet accessible. Regular maintenance, such as cleaning, inspecting for wear, and lubricating the parts, can help prolong its lifespan and ensure it’s ready when you need it. If you notice signs of wear or experience difficulty with the hoist, consider replacing it promptly to avoid inconvenience on the road. Proper care and attention to your spare tire hoist assembly will keep your spare tire accessible, secure, and ready for use at a moment’s notice.