You have had problems with the rear hose leaking? That is a surprise, since it has female inverted flair at both ends; one goes to a male on the rear T (39-41?) that has to seal on the inverted flair seat (no copper gasket can be used) - is that the problem area? On 42?-48, the hose goes to a hard line that connects to the 3-way T mounted on the bracket (sort of horseshoe-shaped) that mounts on the bolt the secures the rear radius rods to the torque tube. We make a thinner version of that bracket that can be used on A, 32/33/34's, then run a hard line forward to either our handbrake setup on 32's or a special bracket the clamps on the torque tube. On 35-38's, we use the one with the male end that goes directly into the hose, and then the hose goes to a hole in
the frame LH rear X leg, like 39-48's. I have had nobody complain of problems with leaks??? (Well, maybe somebody who was using silicon fluid :>D ??? )