Re: Screamin demon coil pack
^^^ to answer your question. I sent them and e-mail though the "Contact us" link and asked if the made one for the 4.0L engine. I received an e-mail back stating they do. The Price was $89.99, part number sd31738. I purchased that one. We'll see how it does.
(SOLD) 2003 Ranger 4.0L V6 FX4
2001 F150 Supercrew Triton V8 (DD)
2008 Fusion 3.0L SEL V6 (my baby)
1992 Taurus SHO MTX (my toy-almost Supercharged)
2004 Nissan Murano SL AWD (Wife's car)