I had the rear rotors resurfaced and new pads on the rear, I didn't mess with the fronts as theres enough meat on the pads. Wife and I just took a short trip and I noticed my steering wheel shaking under braking. Warped rotor right? Well since the rear was resurfaced it has to be the front right? But I didn't notice it until recently so I wonder what the culprit it? Maybe replace the front rotors?

 

More often then not it's uneven pad deposits that cause the dreaded brake judder. Sometimes you can clean the deposits by doing some aggressive brake passes. Run up to 50-60 mph then brake hard down to 10 mph and repeat 5 more times, don't come to a complete stop, and then run as normal for several miles to let them naturally cool down.
I'd try that first, if that doesn't help then resurfacing or replacing the rotors would be a plan.

 

As newt said, "warped" rotors really aren't a thing. What you feel in the steering wheel is uneven pad deposits left on the rotor. Vibration or shaking left to right in the steering wheel is front rotors/pads. If there are uneven deposits on the rear, you'll feel the car pulsing in a kind of front/back motion as you stop.

Try what he mentioned above, some hard stops may clear the rotors of any deposits, if not, resurface the rotors and go with new pads and be sure to bed them in properly.

 

Newt did not say "warped" rotors really aren't a thing.
He said More often then not it's uneven pad deposits that cause the dreaded brake judder.

Warped rotors is real.

 

I was only able to make a few hard stops, it definitely helped, but it's still there. Will try it a few more times tomorrow. Hopefully it will completely get rid of the shudder. Thanks for the help!