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Raising Rear End To Fit Larger Tires

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  • Member since
    March 2020
Raising Rear End To Fit Larger Tires
Posted by BobbyTeems on Thursday, March 5, 2020 7:09 AM

Hello Fellow Builders,

I am brand new in this hobby. Open to all suggestions, I want to teachable.

I need help on my project of building AMT '57 Chevy 1:25 scale. Brand new in the hobby. I am almost finished but decided to add wider tires to chasis. I made some mistakes doing it but it can be salvaged. I want to know how do I raise the rear end to fit these tires? Do I need higher leaf springs or what? I just want to raise the axle and see if I can use the aftermarket tires I bought. The tires that came with kit are skinnier and I don't want to use them. Any help would be appreciated and thanks from a green horn hobbyist...ha.

  • Member since
    December 2003
  • From: Nova Scotia
Posted by Bainford on Tuesday, March 10, 2020 6:45 AM

Hello Bobby, and welcome to the hobby.

You might get more response to your question if you post it in the 'Engine/Chassis' section of the forum. The Chevy is a leaf spring rear suspension, and these are pretty easy to raise. Placing some plastic between the rear of the springs and the chassis where the springs attach is the easiest way, and replicates the extended shackles used back in the day. You can use a simple block of plastic, or scratch some authentic spring shackles, depending on how deep you want to get into it. If you need a bit more 'raise', you could place a discreet shim under the forward mounting point of the leaf springs as well. Need more 'raise'? You may be able to trim some plastic from between the axle housing and its mounting to the spring. A radical raising can be accomplished by mounting the axle housing below the spring, like some pick-up trucks. Hope this helps.

"It would be unusual, if the unusual didn't occur."

- Steamboat Gariepy


  • Member since
    January 2005
  • From: Canberra, Australia
Posted by aussiemuscle308 on Sunday, March 15, 2020 3:36 AM

Add little blocks of styrene between the leaf spring shackle and the body. this will raise the rear of the body to clear bigger wheels. you can make them solid or use sheet like pictured below. Alternatively, you can move the axle from above the leaf to below it.

My Flickr:

  • Member since
    December 2019
  • From: New Braunfels,Tx.
Posted by Metalbender on Saturday, March 21, 2020 12:27 PM

You have been given solid info!

    My question is this though. Do you want the tires inside the body? If so you have to create Tubs for the newer tires as well as what you have been told. I don't think a mild tub job would look bad either.


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