Welcome.
The column should work fine but your question is confusing.
You state that the truck has power steering but it has the original steering column/shifter control. The original steering column incorporates the manual steering box as one unit.
If they cut the original column and mated it to a PS gear box you should be able to install it using the correct flex joint.
If it still has the manual steering box and are using a control valve/ram type system you have your work cut out to use an aftermarket column. Probably more information is required to answer your question.
Fred

Last edited by rfs56trk; 05/12/2017 5:30 PM.

1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine