Ok, sometimes my mind works strangely.
Anybody ever thought of adding a 2nd OEM master cylinder, basically a Siamese twin to the original and then basically "Y" the pedal linkage under the truck so it pushes both at once. Plumb one to the front wheels and one to the rear wheels? No problem with bore size since it is OEM. Seems do-able to me. I would think pedal effort would be the same since it is basically 1/2 load on each MS connected to the same pedal.
Tell ne if I'm nuts, but that seems pretty straight forward. Plumb an adjustable proportioning valve into the rear for adjustment?
Larry W.
I crawled under the truck when I got home and it is a little tight near the motor mount, but with longer bolts, I think you can literally put one against the other. The linkage would be the only hard part. It is not very long.
Larry W.