Register now to get rid of these ads!

Technical Are the wooden body blocks required?

Discussion in 'Traditional Hot Rods' started by AF Texan, Oct 25, 2015.

  1. AF Texan
    Joined: May 17, 2015
    Posts: 6

    AF Texan

    I've done some searching and I can't find anything that tells me if I am required to use the wooden body block mounts. I am building a 1929 Model A Closed Cab Truck and I am leaning towards going fenderless. I have a ton of parts on the way to my house right now and I am getting ready to jump into this build. Can I mount the body directly to the frame, or do I have to use the body blocks? Sorry if I am beating a dead horse, but I couldn't find anything explaining whether to use them or not. Thanks in advance for any help.
  2. Tim
    Joined: Mar 2, 2001
    Posts: 10,043

    from Raytown Mo

    You probably don't have to use wood but you should use something to cushion all that's going on.

    I also assume some amount of panel/fender alignment shiming happens with those wood blocks
  3. Blocks or rubber will be needed to align the body. HRP
  4. (See above) Yes you do need the wood blocks. The body actually sits on them and the rubber pads allow for door adjusting and quieting squeaks.
    Register now to get rid of these ads!

  5. AF Texan
    Joined: May 17, 2015
    Posts: 6

    AF Texan

    Thanks Hotrodmyk, that's what I needed to know.
  6. wuga
    Joined: Sep 21, 2008
    Posts: 304


    If you are building a highboy, the space between the body and frame looks strange. My 30 Tudor highboy sits on the frame with only a welting to dampen vibration. Works perfect and my doors work. This is what I used from Mac's Model A parts.


    Body To Frame Welt - 1/8 X 2 X 20' Roll With Adhesive Backing

    Click on above image to view full picture(s)

    Part #: 28-26865-1
    Alt Part #: B5000AS
    $32.99 rl.
  7. lowsquire
    Joined: Feb 21, 2002
    Posts: 2,564

    from Austin, TX

    where the body mount bolts are on an A cab , are actually up inside a hat section called the subrail, so you do need a spacer otherwise the body will sit hard on the rail in the wrong spots, and pull the doors out of alignment, and probably squeek too! the stock wood blocks are the simplest way, I usually make my own so i can customise the sizes to get the body/frame gap nice and small. you can obviously just plane them down to suit too.
    Hotrodmyk likes this.
  8. AF Texan
    Joined: May 17, 2015
    Posts: 6

    AF Texan

    Thanks for all the info, it is very appreciated.
  9. ol'stinky
    Joined: Oct 3, 2010
    Posts: 258

    from New Jersey

    Last summer I worked on a 54 Ford that was turned into a 4x4. When i was pulling the fenders off i discovered that all of the body bushings where made of hockey pucks. Seems hokey but it worked, may be worth a shot.
  10. They also work well when used as engine mounts.
  11. I ended up purchasing the correct wood blocks, my chassis is not boxed so will still flex a lot. If I was fully boxing I would have used fabricated steel pads with rubber blocks between the chassis and the mounts, each will still require some form of shims to get everything correctly aligned.
    A old tire tread cut apart into blocks would be good for the rubber block (or a old conveyer belt) if you have something to cut it up.
  12. Wood blocks are traditional.

    I mocked up with wood, got my doors hung and square, then machined new blocks that included shim sizes. Just trim the height to get the body closer to the frame. I used a non traditional material... UHMW (ultra high molecular weight polypropylene). You can cut it on a table saw, drill in the drill press. It won't squeak, split, rot, warp, break, shrink, or grow mold.

    If you live in a city with a plastics distributor, go look in the dumpster for cutoffs. Or look on that auction site.

  13. The37Kid
    Joined: Apr 30, 2004
    Posts: 26,025


    Get yourself a wood graining kit and you are all set. Nice work. Bob
  14. I forgot to mention that you can't paint or glue UHMW. It comes in black or white.

Share This Page

Register now to get rid of these ads!


Copyright © 1995-2020 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.