The drag link should be as close to paralell to an imaginary line drawn form the lower spring shackle bolt to the spring pad on the axle to prevent bump steer, this can usually be accomplished by heating the steering arm to cherry red and bending it,


'45 Ford PU
66 Valiant wagon, leaning tower of power.
79 Chevy C10 w/250
02 PT Cruiser Convertable