On my 51 with my steering arm forward, I had to have the tie rod in the back set to 7 degrees down. This was because i had the steering box in front of the axle.
Reversing the kingpin angle is wrong Dave. Just because your drag link and steering box is on the front side it wont change the setup for kingpin angle! Angle should still be 7 degrees back at the top of the kingpins.On my 51 with my steering arm forward, I had to have the tie rod in the back set to 7 degrees down. This was because i had the steering box in front of the axle.
I have always used front side steering boxes on my gassers, as I prefer having the steering box out front where it's out of the way. I put the tierod on the backside, and off the bottom side bolts of the spindles. I put a steering arm off the two top side bolts on the passenger side spindle, and connect my drag link to it. Gives the drag link a better flat angle, and everything gets setup just like it is for a typical backside steer except for this change.I found a 58 1/2 ton front axle, drums are on it so the spindles should be good. If I can get the locust tree cut that's growing up through it I'll have extra fire wood.