...toward the back, right? Before I start reassembly I want to make sure I get everything the way it belongs.
The lathe boss on the pearch goes toward the rear of axle. Then your tilt will be correct.
The bottom of the kingpin is forward of the top of the kinpin if everything is correct.
If you are working with only the parts from a single vehicle that was a good driving car (truck) – all you have to do it put it back like it came apart. But remember the parts fit more than one way but usually only correctly one way.
For example the spindles can also be swapped if you removed the arms. The nut on the spindle should tend to loosen as the car goes forward.
But if you built the axle up from parts or if that was done some time in the distant past you can have all kinds of combinations such as two of the same side spindle (one of our member here had that on his TT and it drives ok until the nut tightens up. In his case it did so in the drive way and only spilt the outer hub before his son was able to stop.)
See also: http://www.mtfca.com/discus/messages/29/40382.html for additional front axle info.
See http://www.mtfca.com/discus/messages/29/43451.html for a good photo half way down the posting of the spring perches installed correct.
Hap Tucker 1915 Model T Ford touring cut off and made into a pickup truck and 1907 Model S Runabout. Sumter SC.