It would be the same as converting a Mustang.
There are two ways to do it, the first way is to swap the center link with one from a manual car and also swap the pittman arm, which is specific to p/s or manual cars. The problem is these parts are getting pretty rare.
The other option, which I'm doing with my Mach, is to get a manual steering adapter, which are available from National Parts Depot or Mustangs Plus, which replace the control valve on your current center link.
Then you just need to juggle your pulleys around so you use one belt to drive both your alternator and water pump. There are various ways to do this. If money's no object, a set of March pulleys are real nice.
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150
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