No, most of the braking force is the front brakes. I put 4 wheel disc on a F100 pickup. I had to adjust to something like 10 to 1 (IIRC) to keep the rears from locking up too fast. (500 psi in = 50 psi out)
Yes, but you will need to remove the residual pressure valve from under the tube seat in the MC.
You should have one now but it will be tuned for drums, you might need to replace it with an adjustable one and through trial and error find the adjustment that keeps the rears from locking up too easily.
