Manual Steering to Power Steering

More involved then I thought. Here's what I found on Yearone.
http://www.yearone.com/yodnn/tech/T...owerSteeringConversion/tabid/453/Default.aspx




Mopar Power Steering Conversion The column steering shaft in a power steering mopar is different (shorter) than the shaft in a non-power steering car.
Steering Gear - changes in 1973. This affects the pitman arm. Prior to 1973 the output shaft diameter was 1 inch (doesn't apply to the C-Body). In 1973 it increases to 1.12 inches. If you buy a steering gear from a post-73 year car and try to install it on a 1972 or earlier car - the pitman arm will be too small.
Typically, 3 different pumps were used on mopars... they require different lines & brackets to secure the pump to the engine.
Identification of the pumps:
Both Federal and TRW pumps can use a cap that appears similar to a radiator cap.
To do a conversion, you'll need the following
Brackets, pulleys, etc... all depend on the specific application. See below, or our catalog for the appropriate part numbers.
Power Steering pump bracket part #'s and TYPICAL USAGE:
PS23 - Big Block Saginaw Power Steering Pump Brackets For use on 1969 and later Big Block engines without Air Conditioning.
PS22 - Big Block & Hemi TRW Power Steering Pump Brackets. For use on most pre-1969 Big Block engines without Air Conditioning. 1966 426 hemi applications.
PS004 - Small Block Saginaw Power Steering Pump Brackets. For use on 1970 and later Small Block engines with or without A/C.
PS25 - Big Block & Hemi Federal Power Steering Pump Bracket. For 1967-72 Big Block & Hemi engines with or without A/C.
PS26 - Small Block Federal Power Steering Pump Brackets. For 1970-72 Small Block engines with aluminum water pump with or without A/C.
PS27 - Small Block TRW/Thompson Power Steering Pump Brackets. For 1964-69 Small Block LA engines with cast iron water pump housings and TRW or Thompson pumps. Can be used on both A/C and non-A/C applications.