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Central Kentucky | Depends on the truck. On mine (2002 Mack) there are two switches. One for each axle with status lights for each. Also there is a Power Divder switch with a status light. This is the norm two switches if both axles lock and always a separate Power Divider switch. Many trucks were spec'ed with just one diff lock. That is the real difference in what is referred to as a "vocational" truck vs. a road truck. My word of caution: nothing can be turning when any of these switches are engaged. Best procedure is to stop, get out, run around the truck, get in and engage!! (smile). If anything is moving in most trucks something is going to break when you throw a switch. Drive straight just like your tractor with a diff lock. | |
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Full locker question on semi
