Hello.<br/><br/>Could you tell me which one of the following is correct?<br/><br/><!<del>StartFragment&gt;automatic transmissions equipped with <b>a</b> slip lock-up <b>mechanism</b><br/><br/>automatic transmissions equipped with slip lock-up <b>mechanisms</b><br/><br/><b>automatic transmissions equipped with slip lock-up <b>mechanism</b></b><br/><br/>Thank you!<br/>