DODGE COIL ESTIMATE

So I Have Had To Change My Ignition Coil 3 Times In 3 Years And It Just Went Bad Again. The Last Time I Replaced It Was Early May, So About...

I Have A 2002 Grand Caravan With A 3.3l V6.I Keep Cracking The Coil Pack Between The # 2 And 5 Cyclinders. The Van Will Act Fine For Months...