Register now to get rid of these ads!

Technical Model A subrail question

Discussion in 'Traditional Hot Rods' started by edcj7, Apr 1, 2016.

  1. edcj7
    Joined: Jan 1, 2015
    Posts: 52


    I'm putting a Model A on a 32 frame but my subrails are rusty so I am thinking about replacing them. A friend of mine who has built a lot of hot rods throughout the years is recommending that I just do away with the subrails and use square tubing. He said it would be easier to make it fit the 32 frame. The frame has been pinched but I'm concerned with the gaps between the subrails and the frame. I'm not sure how to get the subrails to fit the 32 frame but it seems like a lot of people do it. I've looked at a lot of post on here but I haven't found one that really shows how they are put together with the gaps and everything. I just need advice on the best way to go, either buy new subrails or just use square tubing? Any help would be greatly appreciated.
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 17,104


    How talented of a fabricator are you? Making your own sub rails may give you a tighter fit if you are good at it, or not really if you are a beginner.

    If you make your own sub rails it will require a lot of special rework on the bottom edge of the body to fit the cowl and quarters to it.
  3. WiredSpider
    Joined: Dec 29, 2012
    Posts: 907


    Just buy the subrails that Steadfast sells
  4. Mr48chev
    Joined: Dec 28, 2007
    Posts: 29,826


    That would save you many hours of fabrication time. This will show you what his look like
    Someone did a thread on making subrails for just what you are wanting to do on here a while back that goes into the details of making them.
    The37Kid likes this.

  5. edcj7
    Joined: Jan 1, 2015
    Posts: 52


    Thanks a lot for the advice I really appreciate it.
  6. mike bowling
    Joined: Jan 1, 2013
    Posts: 3,556

    mike bowling

    My .02 worth?--I feel you would be better off with new stock sub rails- you will have to modify the rear section because of the kick in the back of the '32 frame (a stock model A frame is flat).
    The stock sub frame will insure that the body panels are located in the correct position to each other, make getting everything lined up easier, and help with getting the doors working correctly. ( which can be a PITA on a Model A !)
    Take your time and fit all the panels before welding anything ( clamps and tack welding).Once the body is together, you can brace it and modify the sub frame to fit the '32 frame.

    Good luck with it. Mike from Mass.
    cometman98006 likes this.
  7. edcj7
    Joined: Jan 1, 2015
    Posts: 52


    Thanks Mike. My friend was saying it would fit against the frame better with the tubing but I agree with you about how all the panels and doors will fit. Plus, I think it will look a lot better. I was just concerned with the gaps between the frame and the subrail but I guess it was the same thing with the original frame. I think it will be fine. Thanks again.
  8. The37Kid
    Joined: Apr 30, 2004
    Posts: 28,299


    Thanks for that link Mr48chev, that is the setup I'll use on my '30 Roadster. I like the way they trimmed the rear wheel inner fender panel to expose more frame rail. Bob
  9. haileyp1014
    Joined: Feb 15, 2006
    Posts: 930

    from so cal

    Why are the sub rails $500?guess I'll bite the bullet
  10. IronFord
    Joined: Jul 13, 2007
    Posts: 355

    from NoDak

Share This Page

Register now to get rid of these ads!


Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.