Installing small block from the bottom

Well, so much for the piece of cake. There seems to be an issue with either the steering box or the pitman arm. The center link is too low and the left side header will not fit. This is a replacement (rebuilt) PS gearbox and a new pitman arm. I will recheck all the numbers today. Looks to me like the pitman arm should go on the shaft another 1/4 to 3/8 and then everything would clear.