Why won't my truck turn over

What is your question?

2001 dodge dakota 3.9L, 160,000ish miles. Has ran great since I bought it but recently when the cold it the truck would not turn over and instead makes a whirrling noise whenever you turn the key, the starter has been replaced, the battery has been checked, the ignition switch has been replaced and the wiring and fuses have all been cleaned and checked. I'm truly stumped any help would be awesome. Sometimes it starts up first try no hesitation and other times it takes over 30 tries over a days period to start

What makes this problem better or worse?

When it is cold or hasn't ran for a day

How long has your 2001 Dodge Dakota had this problem?

A couple months