Why predator? For Crit Garen, it helps gapclose which you need since you can't take too much damage before being able to get on top of them with a squishier build. Also allows to not need to Q to gapclose, which you save to use until you are slowed.

Replaced old stride, and allows for crit garen build. MS passive per item works nicely, since you need gapclose to get on the enemy before taking too much damage.

Can be replaced by Mercs IF they have undodgeable CC and have AP damage. Only take AD Boots if they got 4 AD.

not really another good crit item for garen,but get mortal reminder instead if they have healing (7% MS boost is good too). Otherwise, stormrazor as the slow allows you to position yourself during E, in a way where you can still R them, even if they flash/dash away, when the silence from Q runs out.

Big Damage, must buy.

Not really any good crit items, but 60% is plenty for your E. BC gives much needed hp, ad, and armmor shred which is nice. Sterakes can replace if you plan to teamfight alot, or just to be tankier.

6th item can be anything, get steraks if you got BC, BC if you for steraks. Warmongs, for split pressure and macro lategame.