Does anybody know what the torque specs are supposed to be when tightning the bolts for the calibers?

On the front it's 155 ft lbs. on the 2 bolts that hold the torque member to the spindle. 32 ft lbs. on the 2 bolts that hold the caliper to the torque member. On the rear it's 24 ft lbs on the 2 bolts that hold the caliper to the rear corner module.

What takes 155lb's of Torque? That seems like a lot.

What takes 155lb's of Torque? That seems like a lot.
It is a lot. But it is the correct amount. Nissan says to not reuse the torque member bolts; use new ones.

I just took mine off...they were pretty tight! 155 ft/lbs seems about right.