beam axle 2wd swap (drag link ?s)

[surfacerust]

so long story short im putting a 66 econoline front axle under the front of my 69c10 using 4wd springs and such.

and im kicking around steering.
turning the pittman arm on the shaft so it pulls front to rear and setting up a drag link like a 4wd.

thats how an econo steers anyway.

so what are the tie rod end degree angles on our trucks?

speeway sells a draglink kit that is 7 degrees

any ideas? a better way.info... anything?

help me out here dudes and dudettes