Neither power steering nor hydroboost would have been original equipment, or even optional in 58. It looks like you've got one that's been upgraded to newer running gear sometime in the past. Does it still have a straight front axle?
Jerry
Edit: The brake pedal on all the trucks in 58 went through the floor, with the master cylinder mounted on the frame rail under the driver's floorboard. The only power brake option would have been a "Hydro-vac" unit, mounted remote from the master cylinder, usually behind the cab on a frame rail or crossmember.
Jerry
Last edited by Hotrod Lincoln; 01/19/2010 4:42 AM.