Great timing on this post. My 01' 4.4 was on it's original battery until last week at around 96k miles. Since it started to cool off here it really seemed to be struggling to turn the engine over. That said I located a Bosch replacement at Pep Boys, which was the best in stock price I could find here in Reno. ($99) The fit is perfect and so far it's working well. Still impressed the old battery went the distance it did.