Trucker chain, or choker chain as it's more commonly known, should never be used to yank a stuck vehicle free. A snatch strap or even a recovery strap will exhibit some give under a sudden shock load. Chain will not give at all and can fail if subjected to a sudden, violent shock. Chain is better used in wooded areas to clear trees and obstacles or to tow or pull a vehicle once it has been freed. Choker chain should be high-strength with forged ends and at least 5/16- or 3/8-inch links. The hook ends slide over the chain links, locking in place when under load.