SCC Auto-Trac Light Truck/SUV Tire Traction Chains — Set of 2, Self‑Tightening Class S

SCC Auto-Trac Light Truck/SUV Tire Traction Chain (set of 2) is a self-tightening cable-style snow chain that installs quickly without moving the vehicle and delivers reliable winter traction for SUVs, pickups and passenger cars.

These Auto‑Trac chains use a patented ratcheting tension system and lightweight manganese-alloy cross members to provide better grip, reduced slippage and extended wear compared with conventional chains. Designed to meet Class “S” clearance standards, they fit many light trucks and SUVs while offering the convenience of in-vehicle tightening: hook the inner cable, attach the outside self-tighteners and drive a short distance—no extra external tensioners required.

How do Auto‑Trac chains install so quickly without jacking up the vehicle?

Installation is simplified by the patented ratcheting system that tightens automatically as you drive a short distance. That eliminates the need to move or lift the vehicle for final tensioning and reduces setup time under cold, difficult conditions.

• Connect the inner cable behind the tire.
• Attach two outside self-tightening ratchets.
• Drive slowly to activate automatic tensioning; no separate tension devices needed.

What traction and wear features make these chains effective?

Auto‑Trac uses diamond-pattern cross chains and hardened manganese-alloy cross members with a low-mass D-shaped profile to improve grip while lowering impact on the road. Shorter, narrower links increase the number of contact points and reduce the tendency to bounce or "fly-off," which extends service life.

• Diamond-pattern cross chain for smoother ride and consistent traction.
• Manganese alloy cross members for strength with reduced weight.
• D-shaped link profile lowers road impact and increases contact area.

Will these chains fit my SUV or light truck and meet clearance rules?

Auto‑Trac is built to meet Class “S” clearance specifications and fits many current SUV, pickup and passenger car tire sizes where reduced clearance is required. Always verify compatibility with your vehicle’s wheel well and tire size before purchase.

• Designed for light truck and SUV applications with reduced clearance.
• Check owner’s manual or test fit to confirm clearance and fitment.
• Sold as a pair (two chains) to equip one axle for effective traction.

What are the safety and use guidelines I should follow?

These chains are engineered for winter traction but must be used within recommended limits: install on drive axle tires, follow the manufacturer’s speed restriction, and inspect periodically for wear. Proper use ensures better control and longer chain life.

• Install on the vehicle’s drive axle for maximum effectiveness.
• Observe recommended maximum speed (do not exceed 30 mph while fitted).
• Regularly inspect links, ratchets and connections for wear or damage.

Who is this for: Drivers of SUVs, pickup trucks and passenger cars who need a convenient, reliable snow-traction solution that fits vehicles with limited wheel-well clearance. SCC Auto‑Trac is suited to motorists who value fast installation, automatic self-tightening, and durable, low-mass cross members for improved ride comfort and extended wear in winter conditions.