Sounds good but on one side I get nothing coming out, even with the hose disconnected from the steel line. I'm thinking the system, the master, and proprtion valve are vapor locked or something. 

Ok up on jack stands all around. Trying gravity bleeding. I have fluid coming out of all bleeder screws! How much should I let come out to ensure the air is out?

For me, it was until fluid came out w no air bubbles. It’s rather slow, fluid just dribbles out rather than getting pushed out in a jet. 

I used a long clear tube off the bleeder screws so I could watch the bubbles moving.

Just make sure reservoir doesn’t run dry.  

Probably because they tried to use the supplied chains and wing nuts instead of a C clamp to secure the top to the master.

I've not had a problem with it not sealing.

Good to know. If (when) I have to crack open the brake system again, I will give the Motive bleeder a try.

I recall at the time I was just feeling rather raw from spending so much on replacement calipers (my second set) and many, many quarts of DOT3 🙂. Another tool seemed like a bridge too far. 

Sometimes you just have to pay the guy.  I needed a rear decklid spring compressor to change out my springs.  I tried all the homemade suggestions and couldn't get the old ones out.  A former sponsor on here had a "home made" tool that would work.  It's 2 big washers welded to 2 pieces of  bar stock.  Looked home made but it worked.

It cost me $51 dollars for a "tool" I will never use again.

Years ago I had a heck of a time getting getting a good pedal when I replaced all the calipers on "The Toy" (my homemade pressure bleeder sure got a workout on that project!).  Thankfully the local Corvette parts outfit I bought them from was good about swapping out (multiple times) what I thought were bad calipers.  Turned out it was the new master cylinder I had bought from them that was the culprit.  Swapped it out and didn't have any more issues with the brakes. 

"Mr. Apple" has pointed out many times that a new part doesn't necessarily mean it's good.

Jim Olson 

"The Toys"...!!!  Save the Wave!

Where I've been in a Corvette...!!!

UPDATE. Gravity bled all four corners. The fronts had a steady flow of drips, the rears started out dripping pretty good but then they just stopped. Haven't got the Motive yet so I used the Mightyvac on the rears, worked like a champ. I could see several bubbles coming out until it turned to all fluid. Not sure how the air got in the rears since I only changed the front calipers. Probably from pumping the pedal and it went through the propotioning valve to the back? Not sure how that all works. I now have a good firm pedal! Hallelujah! Probably return the Motive (or put it on ebay) because I don't think I will ever use it. Thanks for all the help guys!

Is the car stops in a straight line now?

I haven't put the wheels back on yet. May have spoken too soon. lol.

Car back together and on the road again. Brakes work perfectly. Thanks to everyone for their help!