Okay so I haven't seen this up here yet so I guess I'll be the one.
1. Start with about 10 lbs of dry ice and a rubber mallet. (10 lbs for rear/10 lbs for front)
2. Be sure to use gloves considering the ice is 115 degrees below freezing!
3. Now break up the ice and spread it around on the tar like so.
4. Wait untill you can hear the tar start to crack.
Then you can either:
a. use a rubber mallet to pound and break up the tar.
b. use a putty blade to wedge in between the tar and just lift.
(I found it easier to pull up larger chunks using method b.)
5. This is what the end result should look like.
You can use some PB Blaster or Googone to polish it up.
After removing 15 lbs of tar, the weight loss is significantly noticable!