FINALLY got rid of the severe vibration under acceleration. Turns out the first CV axle I installed was out of balance from the factory. Things rides like a caddy now and accelerates like a rocket.
BUT...it's giving me an intermittent ABS / TCS lights and intermittent ABS-ish pulsating brake pedal. I replaced both front wheel sensors to no avail. ABS module failing?

 

Since you were working on the CV joint, it is possible that you created an issue with the abs signal. The easiest way to figure out what is going on is to watch each wheel speed on a scanner to figure out if you have a faulty signal to the ABS module and narrow down the problem to possibly one bad signal. Odds are not likely the ABS module went out right after working on the CV joint.

You could also scan for codes to see if a problem was detected. Most parts stores will scan for codes as a free service if you don't have a scanner.

 

It's not throwing any codes. The light will go out after a few minutes riding down the road

 

The individual wheel speeds from the PCM will help like I said before. I'd look at the electrical connector for the ABS sensors to see if one of the pins has corrosion or the sockets aren't press-fitting tight enough on the sensor If you have the old sensor that was broken, then you should be able to relase a pin to see if there a socket in the electrical connector fits loose on the pin.