if it looks like these, it's an A.R.E...the best in my opinion...that's what mine is...
$1200 when new, hard to find used , parts are available.
https://www.lkqpickyourpart.com/loca...earch=frontier
https://www.lkqpickyourpart.com/loca...rch=ford+f-150
duplicate keys are available for $8 on ebay...