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Technical 37-38 chevy cross steering

Discussion in 'Traditional Hot Rods' started by 55onefifty, Jan 14, 2020.

  1. 55onefifty
    Joined: Sep 12, 2012
    Posts: 494

    55onefifty
    Member

    Does anyone make a bracket to mount a vega steering box on a 1937 or 1938 chevy car frame. What steering set up are the gasser 37-38 chevy guys using or any one using a straight axle.
    Thanks
     
  2. Paint
    Joined: Nov 18, 2005
    Posts: 303

    Paint
    Member

    I bought this setup from Butch's rod shop in Dayton Ohio in ASF.jpg the mid 80's but they are out of business now. Put lots of miles on it and it drove great, Shouldn't be that hard to fabricate on your own.
     
  3. pila38
    Joined: Mar 25, 2009
    Posts: 763

    pila38
    Member

    I'm using the original steering with a '41/'46 GM truck recirculating steering box. Was designed to work with that axle, but does make it tight for headers and such (I'm running fenderwells, so not really an issue to me.
    Eric
     
  4. ...made my own steering box mount(saginaw 525 box from mid 60's Chevy) , bolted to frame, all the steering components were from Speedway, drove really nice... 37 coupe build 219.jpg
    37 coupe build 217.jpg
     
    irishsteve likes this.

  5. alchemy
    Joined: Sep 27, 2002
    Posts: 17,015

    alchemy
    ALLIANCE MEMBER

    When working with those top hat Chevy frames be aware the wall thickness isn't really much. The strength comes from the shape and the flanges. It should be important to incorporate/attach/mount any new bracket to the flanges, either bolted, welded, or gusseted somehow. Sure you can weld right to the side of the frame, but make sure you also brace it to the flanges.
     
  6. 55onefifty
    Joined: Sep 12, 2012
    Posts: 494

    55onefifty
    Member

    Thanks for the information and the pictures. Lots of good ideas.
     
  7. ...bolted the mount to the flanges and bent a heavy strap that hooked on top of frame and drop'd down to the mount for reinforcement...all bolt-on 37 coupe build 132.jpg 37 coupe build 220.jpg 37 coupe build 220.jpg
     
    deathrowdave likes this.
  8. deathrowdave
    Joined: May 27, 2014
    Posts: 2,648

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    The mount looks good , but you will need to install a piece of tube to stop the top hat from crushing . Easy way to fab cross steering , is by using an early Jeep right side tie rod , it has a hole in it for the draglink to be attached .
     
  9. deathrowdave
    Joined: May 27, 2014
    Posts: 2,648

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    You do not have to use cross steering , an early Toyota 4x4 has a very usable box that will steer from the drivers wheel very easily .
     
  10. seb fontana
    Joined: Sep 1, 2005
    Posts: 7,034

    seb fontana
    Member
    from ct

    Steering shaft needs to be supported above the double joint.
     
    PONTNAK123 and mgtstumpy like this.
  11. ..steering shaft needs no support with one double u-joint,...that strap bolt was installed towards the top of the framerail, snug'd up, needed no inner tubing,...drove this car lot's of miles, no problems.
     
    Hnstray likes this.
  12. deathrowdave
    Joined: May 27, 2014
    Posts: 2,648

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    You may be correct , I just over build I guess . Look at the first phots do you see the tube in the frame ? This is how I did mine . It worked for 60 K when I sold the car . Those frames are only sheet metal the breaks are what makes the strong
     
  13. alchemy
    Joined: Sep 27, 2002
    Posts: 17,015

    alchemy
    ALLIANCE MEMBER

    The steering shaft DOES need a support above the double joint because there is another joint there at the base of the column. A rag joint is still a joint.
     
    PONTNAK123 likes this.
  14. ...there are no rag joints in the final pic,..the bottom of the steering column shaft is bolted solid to the top shaft above the double u-joint....
     
  15. alchemy
    Joined: Sep 27, 2002
    Posts: 17,015

    alchemy
    ALLIANCE MEMBER

    Well that ain't right. Those parts aren't designed to work like that. A couple bolts there in the system shouldn't be taking all the torsional load. Granted it's not a huge amount, but I know I wouldn't feel comfortable doing it.

    Replace the rag joint pieces with a solid coupler and a new chunk of straight shaft. Then you won't need another support, and I can sleep at night.
     
    PONTNAK123 likes this.
  16. ...proof load strength of grade 8 bolts is 6300 lbs,..doubt there was any where near that much pressure ever applied to those bolts...
     
  17. look at my albums. I made an album years ago about the vega box with cross steering on my 38 Chevy coupe.

    I have a Chevy 327 and had to go to fender well headers with the vega box in the way.
     
  18. Deron S Bolender
    Joined: Jul 12, 2019
    Posts: 2

    Deron S Bolender

    Will it steer bad and cause problems if my drag link is at an angle if I flip the pitman arm pointing to the front?
     
  19. Deron S Bolender
    Joined: Jul 12, 2019
    Posts: 2

    Deron S Bolender

    Any easy fixes to turn right when I steer right? I messed up! 20210916_175326.jpeg
     
  20. jimmy six
    Joined: Mar 21, 2006
    Posts: 9,496

    jimmy six
    ALLIANCE MEMBER

    Corvair box cross steer works great. 503224FA-4804-44C7-8D2F-765335CD71DC.jpeg
     
  21. Mr48chev
    Joined: Dec 28, 2007
    Posts: 29,597

    Mr48chev
    ALLIANCE MEMBER

    That reverses the direction the pitman arm moves in when you turn the wheel meaning when you turn left the wheels will turn right.

    Rear steer (box behind the axle line) normally have the pitman arm facing forward while front steer (box in front of the axle line) have the pitman arm facing towards the rear of the car.
    It looks like you drag link is way further to the rear than you actually wanted it anyhow.
     
  22. Not to be harsh but: maybe best to undo all that and start over.
     
    Hnstray likes this.

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