Safety check

AWD does not mean you can install chains wherever they fit

Modern vehicles can have very tight clearance around struts, brake hoses, steering components, wheel liners, and suspension links. A chain that clears the tire while parked can contact nearby parts when the wheel turns or the suspension moves. The owner's manual is the first fitment rule, even if a generic chain package or online chart suggests something different.

Find these four answers before buying the chains

Open the winter-driving or wheels-and-tires section of the vehicle manual and match it to the tires actually installed on the vehicle.

  • Which axle or axle(s) are approved for chains or cables?
  • Is the exact tire size on the vehicle approved for traction devices?
  • Does the manual require SAE Class S, a maximum link thickness, cables, or another low-clearance design?
  • What maximum speed and operating restrictions apply while the devices are installed?
  • Does the manual prohibit chains on certain optional wheel sizes even though other trims can use them?
  • Does the chain manufacturer list the exact tire size and provide a tensioning and recheck procedure?

Drivetrain labels are a starting clue, not the final installation rule

Front-wheel drive
Vehicles where the manufacturer approves traction devices on the front axle

The front tires provide drive traction, but steering and suspension clearance still determine whether chains are permitted and which design fits.

Rear-wheel drive
Vehicles where the manufacturer specifies the rear axle

Many trucks and SUVs use rear-axle chains, but optional tire sizes, dual rear wheels, or limited wheel-well clearance can change the approved setup.

All-wheel drive or four-wheel drive
Vehicles that distribute drive torque to more than one axle

Do not assume four chains are automatically required or automatically allowed. Some manuals specify one axle, some allow particular combinations, and some tire sizes cannot accept chains at all.

Test-fit them in the driveway before the mountain pass

  1. 01
    Practice on a dry, level surface

    Learn the inside and outside connection points while your hands are warm and you can see the instructions. Do not wait for a dark shoulder in falling snow.

  2. 02
    Check clearance and tension

    Center the device on the tire, follow the manufacturer's tensioning sequence, and verify that no loose section can strike the body, brake hardware, or suspension.

  3. 03
    Recheck after the specified short distance

    Many traction devices need a stop-and-retension check after initial movement. Follow the chain manufacturer's instructions rather than guessing a distance.

  4. 04
    Remove them when the road no longer calls for them

    Chains are not intended for normal dry-pavement driving. Follow the vehicle and chain maker's speed limits and road-use restrictions.

Road chain controls and vehicle compatibility are two separate questions

A state highway agency may require motorists to carry or install traction devices during a storm, while your vehicle manufacturer may restrict which devices fit a particular wheel-and-tire package. You need to satisfy both sets of requirements.

Before a winter road trip, check the current road authority's chain-control information for your route, then confirm that the devices you carry are actually approved for the vehicle. A chain in the cargo area is not useful if it cannot safely fit the tires.