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Power Steering

Discussion in '40- & 55-Series Tech' started by jwdawson, Nov 18, 2003.

  1. jwdawson

    jwdawson

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    ??? I have been reading some on power steering conversion, but not alot which maybe I should. My question is about the turning on the power steering. I keep coming across the fact that the saginaw gearbox has a 4 turn rating. What is meant by the 4 turn? I am about to go overseas with the military and Imight be able to find a gearbox with the same turns cheaper and I will be able to get the parts for sometime to come. This will be the same fact for the power steering pump as well. Another question is about the gearbox its self. Why can't another manufacturer's gearbox be made to use? I am talking about where it mounts to the frame of the cruiser. Any help?
     
  2. cruiserman

    cruiserman

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    4 turns lock to lock?
     
  3. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    Do a search, there have been a couple different power steering systems using Toyota power steering boxes from mini-trucks, and from the 60 series wagon...
     
  4. jwdawson

    jwdawson

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    So what is this lock to lock?
     
  5. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    [quote author=jwdawson link=board=1;threadid=7742;start=msg64946#msg64946 date=1069215121]
    So what is this lock to lock?
    [/quote]

    Starting at one stop in the gear, all the way left or all the way right, then counting the number of times the input shaft rotates in it's complete range of travel.

    Clear as mud? :)
     
  6. hammerhead

    hammerhead

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    It takes 4 full turns to get from one side to the other.
     
  7. jwdawson

    jwdawson

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    Ok, Now that I have learned something new for the day, Thankyou. So what are the average auto gearbox turns? This seems as if it would be easy enough to find another gearbox to complete the same function as the saginaw or what ever else. The thing I am finding is the mounting is another issue for this as well.
     
  8. hammerhead

    hammerhead

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    By the way, you don't have to have a 4-turn box. I'm running a saginaw that has like 3 1/4 turns or something like that. It works great. Yes the 4 turn is the more desirable but it is also becoming more rare. Look also at other possible options like scout, astro, etc.
    good luck
    E
     
  9. godzilla

    godzilla

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    If you running this rig on road you want a 4 turn box. One like hammerheads is going to be to fast. Try to find a box off a 70's nova or chevelle. Or you can do a scout saginaw conversion. I've done both and can tell you that that they both envolve just about the same insatallion time and give you the same performance. Feel free to pm me and I'll give you all the ins and outs. Good Luck, Pete
     
  10. hammerhead

    hammerhead

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    [quote author=godzilla link=board=1;threadid=7742;start=msg65533#msg65533 date=1069318092]
    One like hammerheads is going to be to fast. [/quote]Yeah, it's fast, but it doesn't take long to get used to it.
     
  11. theo

    theo

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    Look for a box with 4 mounting bolts instead of 3. Lots of both in the wrecking yards. '70s GM cars and trucks. You need one with the pitman arm facing rearward, otherwise you'll be "going left when you turn the wheel to the right". There will be two input shaft sizes - 3/4" and 13/16". I went for the larger but I'm not sure it matters.

    Mine has 3 1/4 turns and I wouldn't want it any slower, especially with that giant stock steering wheel!