Do I need 4 snow chains on a AWD?
Requirement 2 (R2): Chains or traction devices are required on all vehicles except four-wheel/all-wheel drive vehicles with snow-tread tires on all four wheels. NOTE: (Four-wheel/all-wheel drive vehicles must carry traction devices in chain control areas.)
Do you put chains on all 4 tires with 4wd?
Four-wheel drive vehicles should use tire chains on all four tires. You must use tire chains for those wheels on the drive axle for two-wheel drive vehicles, but it’s much safer and easier to control if you have chains on all four tires.
Do I need 2 or 4 snow chains?
Ideally, you should put tire chains on all four tires for all types of vehicles. By using four tire chains, you’ll be able to obtain the best possible traction and balance. Problems can occur by only chaining one axle.