twisted minis
+1y
Ya on the back, I just got a Toyota driveshaft, measured my length, and took it to a driveline shop to have them swap the Toyota end onto the shaft. I think they actually put the Mazda end on the driven side of the Toyota shaft because it was longer. Didn't have to re-tube the shaft. I set it up with one of my link bar brake lines, so I just routed it where I wanted.
For the front, I don't agree with doing a Toyota spindle swap. I don't like swapping spindles because it can create bump steer. My method of choice is clipping the truck with a Toyota frame, or having the stock hubs redrilled. You can have your hubs redrilled for about the same cost as a drop spindle anyways. Then you don't have to source new hubs, rotors, and calipers, and adapt your steering to the new spindle.