driver's side mirror has a crack in it
 

the driver's side mirror has a vertical crack in the mirror/glass. can i just replace that or do i have to get a whole new one?

you can replace just the mirror glass part

wheres the best place i can buy it and for how much

ttt

i heard i can goto a local glass shop?

First choice is probably your friendly local dealer. It is a standard F-150 mirror glass, which snaps in place. I've seen replacements for some mirrors at Pep Boys, but I don't know if they carry it. I assume yours does not have the turn signal led's behind the glass.

nope no turn signals. how much from ford? just need the mirror glass.

anyone?

We sell the glass mirror installed for about $20. Just call around to local auto glass shops and ask. Make sure they don't cut them they actually order them in. The glass just glues into the plastic frame simple 10 minute install.

Shoot, one time I was stealing a roadsign that had a picture of a stick man riding a horse on it, and my friend and I dropped it onto my mirror, and it broke the glass out, and Ford charged me 220 bucks to replace just the glass!