Easy Soap Box Derby Car Build

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About: I have a passion for building or improving everything. Most things I make I like to be different or go over the top on the design.

These instructions demonstrate how to build an inexpensive simple Soap Box Derby Car. You should be able to build this car for about $50. Study this pictures and it will make your build easier. You may need to refer to these later if you have questions.

Step 1: Exploded View Refrence

Refer to these drawings if you have questions or need more clarification. It shows all the components that are in the assembly.

Step 2: Gather Needed Supplies and Hardware Reference Sheet

Preparation Step (Most Important)

The most important step of these instructions is safety. Please wear appropriate safety gear when needed. Safety glasses will protect your eyes when drilling and work gloves will protect your hands. When using power tools, follow all safety guidelines in the owners manual. Children should be assisted by an adult when building this kit.

These instructions are written for a builder of average skill. You can change and customize you car in anyway that you like.

Shopping Step

Gather all your needed supplies. You can just print these off and use as a shopping list. Any Home Improvement store will sell these items with the exception of the wheels, they may be harder to find, but you can substitute other wheels if you'd like.

Step 3: Step #1 Building the Front Axle Assembly

Step 4: Step #2 Attaching Front Axle Assembly to Frame

Step 5: Step #3 & #4 Building and Attaching Rear Axle Assembly

Step 6: Step #5 Attaching the Seat

Step 7: Installing Brake and Steering Rope

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18 Discussions

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Cheryl Goett

Question 4 weeks ago on Step 7

Having a hard time understanding the eye bolt hardware - says I need two #4 2-5/16" - 5/8" eyebolt. Anyone explain those numbers?

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merchantzain071

5 weeks ago

is there an easy way to tell, for each different picture, which pieces of wood are shown and where to drill the holes? first time building

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SnowSkierDude

1 year ago

Where is Step 7, brake and wheel attachment?

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SnowSkierDude

1 year ago

Where is step 7, brake and wheel attachments?

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gtomasini

1 year ago

Hi there, You mention a kit. Is there a kit we can purchase? Thanks!

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Jezzensmom808

4 years ago

Hi there I love this plan, but it's missing the rest of the break and wheel set up instructions. How I do I get them or get to those pages it's saying to refer to?

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susiejin

4 years ago on Introduction

Did anyone figure out how to attach the wheels? It looks like you would need a hole drilled into the end of the rod, but hopefully not. :) Also, how does the brake work?

2 replies

Hi, There are a couple of different ways. The easiest would be to use a rod collar. Hope this helps. See image in comments.

Hi, There are a couple of different ways. The easiest would be to use a rod collar. Hope this helps. See image in comments.

Hi, There are a couple of different ways. The easiest would be to use a rod collar. Hope this helps. See image in comments.

Hi, There are a couple of different ways. The easiest would be to use a rod collar. Hope this helps. See image in comments.