FORD F-150 ENGINE STALL AT IDLE

I Started Having Trouble When I Came To A Stop Light Where My Rpms Drop Below 6 Or 7 Hundred And The Vehicle Starts To Shake And Will Stall...

The Truck Listed Above Is A 4x4 With A 5.4 Triton. Started Acting Up A Few Months Ago And Would Die On Me Randomly I Would Let It Sit For...