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Rack and pinoin question?

Discussion in 'The Hokey Ass Message Board' started by Roughneck Josh, Aug 16, 2010.

  1. Roughneck Josh
    Joined: Aug 11, 2009
    Posts: 27

    Roughneck Josh
    Member

    Hey fellow hambers, i am still in the process of building a 1940 chev truck and i was wondering what you guys were using for the rack in pinion in your hot rods?

    Thanks,
    Roughneck josh
     
  2. kingpins
    Joined: Apr 27, 2009
    Posts: 623

    kingpins
    Member

  3. Most of us are not using a rack. But they say the rack from an '80s Thunder Hawk is a good one for a power rack. You can use a GM pump with them from what I understand.

    There really isn't anything wrong with the box that came with your truck. I used the stock box in my '41 years ago and it served me real well.
     
  4. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member

    Hi Josh....what do you have for a front end in the truck?
    I remember there was talk of going independant and that can make a huge difference in what you use.
    The original style rack for the donor front being the very best one to use of course.
     
  5. Roughneck Josh
    Joined: Aug 11, 2009
    Posts: 27

    Roughneck Josh
    Member

    Hi hackerbilt....... for the front end i am still using the original style straight axle no changes there!



    thanks
    josh
     
  6. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member

    Josh...I'd stick with a regular steering box in a truck with the beam axle and parallel leaf springs.

    You can go with something different than stock...like add a power box or whatever.

    A rack is gonna need to be attached to the axle to prevent bumpsteer.
    In a 30's car that isn't such a big deal as the steering column is on a gentle angle compared to the column in a truck.
    The truck will need careful selection and placement of steering Ujoints and slip shaft to allow for the movement of the rack and axle assembly compared to the frame.
    Due to the column angle the trucks setup will be closer to the joint limits as compared to a car.
    Also, a rack will limit your turn radius as the spindle steering arms on a rack equipped car are shorter than the ones on your truck.
    Very likely you'll have issues with finding a tierod end to fit the truck spindles as well.

    Stick with a regular steering box to keep things easy and safe.

    If you need anyone to give something your doing a look over...contact me (or I'm sure) fitzee and maybe both of us can drop up to check it out for you!

    Haven't seen your truck except in your pic you posted, but she looks good!
    Keep the faith...you'll "get 'er done..." ;)
     
  7. Roughneck Josh
    Joined: Aug 11, 2009
    Posts: 27

    Roughneck Josh
    Member

    Thanks Bill...... that helps a lot going to get back on track....almost done now though you can drop down anytime whenever....take fitzee with you cause im sure hes itchin to see what im up to also..talk to you later

    Josh
     
  8. Antny
    Joined: Aug 19, 2009
    Posts: 1,071

    Antny
    BANNED
    from Noo Yawk

    I'm running an 88 Thunderbird rack-n-pinion in my truck........in conjunction with an IFS. Go-cart-like handling. Yeah babay YEAH! :)
     

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