SCC Chain Auto-Trac Tire Traction Chain Set of 2 - Self-Tightening

In this review of the SCC Chain 0155505 Auto-Trac Tire Traction Chain set, the bottom line is straightforward: this pack of two is aimed at drivers who need a fast, secure way to add traction for short winter trips and who value an easy self-tightening system. The most convincing reason to buy is the patented AutoTrac ratcheting tensioner that tightens itself while driving, letting most users install without moving or jacking the vehicle and saving time in poor weather.

Key Features

• Self-tightening system: The patented ratcheting AutoTrac mechanism automatically tightens the chain while driving, removing the need for separate tensioners and frequent manual adjustments.
• Install without jacking: The design permits installation without moving or jacking up the vehicle, so fitting can be completed at the roadside in minutes.
• Diamond pattern cross chain: The diamond pattern provides a smoother ride and improved grip across icy patches compared with simple ladder-style chains.
• Low-mass D cross members: Manganese alloy steel cross members are shorter and lighter, reducing throwoff risk and increasing gripping points for traction.
• Class S clearance compatible: The AutoTrac system meets Class S clearance requirements for many SUVs, pickups and passenger cars, so it fits vehicles with limited wheel well space.

Who It's For

The SCC Auto-Trac set is best for drivers who need a fast, reusable traction option for occasional winter travel, commuters who carry a small roadside kit, or owners of SUVs and pickups with Class S clearance looking for a compact chain solution. It is particularly useful for people who value a quick installation and a self-tightening mechanism that can be engaged while driving.

Drivers who require guaranteed long-distance durability under constant heavy use, or those with tires that run outside standard sizing tolerances, should test-fit before relying on these chains and might prefer heavier-duty or vehicle-specific alternatives. Also note that these chains should not be used above 30 mph.

Pros & Cons

Pros

• Easy installation: users report fitting a wheel in about 5-10 minutes without jacking the vehicle.
• Effective tightening feature: the patented ratchet system keeps chains snug while driving for consistent traction.
• Good traction and ride quality: diamond cross pattern and low-mass D links provide smoother operation and more grip.
• Meets Class S clearance: suitable for many SUVs, pickups and passenger cars with limited clearance.

Cons

• Sizing variability: some customers report fitment problems, so a test fit is strongly recommended before relying on them.
• Mixed durability reports: while many praise construction, a few users experienced premature failure under use.

Specifications

Product	SCC Chain Auto-Trac Tire Traction Chain (set of 2)
Quantity	Pack of 2 (per-pack information applies)
Tensioning	Patented ratcheting self-tightening system
Cross member pattern	Diamond pattern with low-mass D cross links
Material	Manganese alloy steel cross links
Speed limit	Do not exceed 30 mph with chains on
Clearance class	Meets Class S clearance for many SUVs, pickups and passenger cars

Our Verdict

The SCC Auto-Trac set is a strong value for drivers who need quick, roadside-ready traction with a convenient self-tightening system; it is best for occasional winter use and vehicles with Class S clearance. Test-fit before heading into remote conditions, because sizing and long-term durability vary between users.

Frequently Asked Questions

Can these chains be installed without moving the car?
Yes. The AutoTrac design allows installation without jacking or rolling the vehicle, making roadside fitting faster.

How fast can you drive with these chains installed?
Do not exceed 30 mph when the chains are fitted to the tires.

Will these fit any tire of the same nominal size?
Sizing can vary between tire models and manufacturers, so a test fit is strongly recommended before relying on them for a trip.