[header] How to install snow chains [title] Identify the drive wheels of the vehicle. [step] Snow chains are intended to help you gain traction in the wheels that push the vehicle. Depending on the application, that may be the front wheels, the rear wheels, or all four. 
Refer to your vehicle's owner's manual if you are unsure which wheels are the drive wheels. [substeps] Front wheel drive cars (fwd) will use snow chains on the front wheels.