On a separate ticket? Not something I'd chance. You're on a T8-T8 transfer, but even with GE you still need to re-clear security which can be sticky at JFK even in the TSA-Pre line.
AA is the major user of T8, you'd be connecting to one of their flights, and potentially using their policy of protecting oneworld connections, so let's move this over to that forum where you'll probably get more comprehensive advice.
/mod