Auto‑Trac® can be installed without moving (or jacking up) the vehicle! The patented, ratcheting tightening system automatically tightens the chain while driving. Just connect the inside cable, attach the two outside self-tighteners and drive! No additional chain tensioners are necessary or recommended.
Features:
- Fits a wide variety of tire sizes
- Meets Class "S" clearance requirements, even in light truck sizes.