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Technical Dropping original 46-48 ford front crossmember

Discussion in 'The Hokey Ass Message Board' started by EV34, Oct 13, 2020.

  1. EV34
    Joined: Aug 29, 2008
    Posts: 717

    EV34
    Member

    Anyone have any photos or information on dropping/flattening the original front crossmember in a 46-48 ford? I will be running a SBC. I am looking for some insight on clearance and or how much I can go and get away with. I have a good idea on how to go about it just want to see if there is any other ways to go about it.
    Thanks in advance

    Ethan

    12E67665-996C-4BAF-BAED-2569F846FC6C.jpeg
     
  2. Asphalt Demon
    Joined: Jan 19, 2014
    Posts: 307

    Asphalt Demon
    Member
    from Australia

    I section 2 inch out of them,in the vertical drop area.weld em back up,any more you can get clearance problems over 2 1/4 section,but ive done them and run a 4 inch drop axle too no problems but its way low. easy method is weld some angle across the top of the crossmember with a centre hole drilled to locate a bolt in the spring hole centre hole,keeps the two top sections together in the right spot.cut your horizontal section out of the crossemember in the drop area,lift the bottom up using the long bolt to help centralise it all and weld er up johnny
     
    anothercarguy, EV34 and murf 32 like this.
  3. I bought a dropped crossmember from '40 Fort along with a Posies spring. Started out simple; but ended up requiring more changes than I thought would be needed.
     
    EV34 likes this.
  4. geoford41
    Joined: Jul 26, 2011
    Posts: 604

    geoford41
    Member
    from Delaware

    I believe that at one time Speedway sold a replacement cross member for the 41-48 fords that was much lower. you might look at the catalog
     
    EV34 likes this.

  5. EV34
    Joined: Aug 29, 2008
    Posts: 717

    EV34
    Member



    awesome information Johnny. That’s what I was looking for. You have any photos by chance?
     
  6. EV34
    Joined: Aug 29, 2008
    Posts: 717

    EV34
    Member

    Thanks guys for all the feedback. I tried to order the crossmember from speedway but it has been on back order for a while. Looking for a alternative
     
  7. Asphalt Demon
    Joined: Jan 19, 2014
    Posts: 307

    Asphalt Demon
    Member
    from Australia

    I can get you a photo of a sectioned front crossmember tonight I’ve been driving on for six years, I’ve got it up on stands doing the brakes, so it’s good timing Johnny
     
    RICH B likes this.
  8. Asphalt Demon
    Joined: Jan 19, 2014
    Posts: 307

    Asphalt Demon
    Member
    from Australia

    EC93C556-3335-46A2-9DAE-E48CEA498407.png This was ride height with a 4” drop axle and 2” sectioned front crossmember.Johnny
     
    T&A Flathead and Kato Kings like this.
  9. Asphalt Demon
    Joined: Jan 19, 2014
    Posts: 307

    Asphalt Demon
    Member
    from Australia

  10. topher5150
    Joined: Feb 10, 2017
    Posts: 2,519

    topher5150
    Member

    I have a speedway crossmember sitting around that i'm not using if you're looking to buy one.
     
    JeffB2 likes this.

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