Hot Wheels How To

Build Your First Custom Hot Wheels from a Prepared Kit

Bare-metal Chevy C10 pickup body with its separate black base and chrome-colored interior behind it

Your first custom Hot Wheels is easier to finish when the body, wheels and interior fit together before you start painting. A prepared DIY kit gives you a stripped casting to work with. Choose a body you like, assemble it once without paint or glue, then build the finish around a setup that already closes and rolls freely.

For a manageable first project, choose one body color and a few details: perhaps the grille and headlights on a pickup, or trim and an exposed engine on a gasser wagon. You can add more effects on a later build. The aim here is a neatly finished car that goes back together without a struggle.

Choose the shape you want to build

The Chevy C10 pickup and Chevy II Nova Gasser Wagon below are both stripped, ready-to-paint kits with click-together assembly. Their different body shapes give you different places to put the color and detail. Custom wheels are sold separately, and interior, window and original-wheel colors may vary.

Two starting points for a first prepared-kit build
Choice What you can see in the kit photos Wheel-size reference
1967 Chevy C10 Pickup A pickup cab and open bed; a good canvas for a body color with small grille and trim details. Listed original setup: 10 mm front, 12 mm rear.
1964 Chevy II Nova Gasser Wagon A long wagon roof and exposed engine area; useful if you enjoy contrasting bodywork and engine detail. Listed original setup: 10 mm / 12 mm.

Those measurements describe the listed original wheel setups. They do not establish replacement-wheel width or axle length, and they do not make the two kits' parts interchangeable.

1967 Chevy C10 Pickup DIY kit

Assembled bare-metal Chevy C10 pickup with silver-colored wheels and an open bed

Choose the C10 for a project with a pickup cab and open bed. The photo shows the bare-metal truck assembled; the kit is prepared for your own finish.

View the C10 kit and current availability

1964 Chevy II Nova Gasser Wagon DIY kit

Separated Nova Gasser Wagon kit parts: bare-metal body, black base, tinted window insert and chrome-colored interior and engine

Choose the Nova for a wagon-bodied gasser project. The separated-parts photo makes the relationship between the body, window insert, interior and base easy to follow.

View the Nova Gasser Wagon kit

Make the first assembly your fitting session

Work over a shallow tray so a loose axle or small part stays within reach. Lay out the body, window insert, interior and base. Before adding upgrades, put the supplied components together to learn how they seat. If a part seems missing or damaged, resolve that before painting.

  1. Seat the windows and interior. Check that their locating tabs sit in the intended recesses and that nothing is trapped between the body and base.
  2. Position the wheels and axles. Check the front and rear separately. Keep each axle in the position where it was tested.
  3. Close the complete car gently. A gap is a reason to reopen it and look for a misplaced part. Squeezing harder can hide the cause until final assembly.
  4. Turn each wheel, then roll the car on a flat surface. Look for a tire touching the body, a hub rubbing the base, or an axle that shifts enough to catch.
  5. Repeat with any replacement wheels. A wheel that spins on the open base may rub once the interior and body are fitted.

A quick photo of the successful assembly can help when you return to it after painting. Keep the focus on how the parts sit: the window insert's direction, axle positions and any tabs that need to line up.

Choose wheels after checking the available space

Measure the outside tire diameter, wheel width and axle length, then check clearance at the body and the inside of each hub. The wheel and axle fitment guide explains these checks in more detail.

The green four-spoke set below has four wheels listed at 10 mm. That differs from the kits' 10 mm / 12 mm reference. It is a useful option to compare when planning a different wheel setup, but a shared scale or a matching front diameter does not establish fit on either kit.

Green four-spoke wheels with rubber tires

Four green four-spoke wheels with black tires, showing front faces, rear hubs and two crossed axle rods

Four rubber-tired wheels, all listed at 10 mm. Confirm axle dimensions and supplied hardware before ordering for your chosen kit; the photo is not a fit test.

Check the green wheel set's details

Paint the body after the fit works

Take the kit apart again and keep the windows, interior, wheels and tires away from the painting area. Use a primer and color system suitable for the metal body. Follow the exact products' preparation, ventilation and protective-equipment instructions; a kit being stripped does not mean the surface can be painted without cleaning.

Start with the manufacturer's cleaning and preparation steps. Apply the specified coats, allowing the stated interval between them. A small body makes it tempting to finish in one heavy pass, but excess paint can obscure the grille and panel detail. Check the primer in good light before adding color so visible rough spots can be addressed at that stage.

Keep paint buildup away from the mating surfaces you identified during the test assembly. If you add decals or a clear coat, check compatibility with the color coat and follow the correct recoating window. Dry-to-touch, handling and recoating times can differ; use the directions for your exact finish instead of assuming everything is ready after the same wait.

Reassemble, then check the finished car

Once the finish is ready to handle under its instructions, refit the window insert and interior, seat the axles and close the base using the kit's click-together design. Model glue is optional for extra hold. If you choose to use it, use an adhesive suitable for the joined materials and keep it away from wheel hubs, axle channels and clear windows.

Repeat the rolling check with the car fully closed. If it rolled before painting but now catches, reopen it and look for a shifted component or paint on a mating surface before changing the wheels. If the base leaves a gap, check the window and interior tabs first. Avoid forcing a fresh finish into place.

Finish by checking the car from the front, rear and both sides. All four tires should meet the flat surface, the body should sit evenly on its base and the wheels should stay secure. Take a few finished photos for your next project, and describe the car as customized if you later sell or trade it.

Questions before your first build

Do these kits need drilling before assembly?

The C10 and Nova kits described here are prepared, stripped castings with click-together assembly. Starting with a factory-assembled car involves a different opening process. Check which starting point you are buying.

Are custom wheels and paint included?

Custom wheels are sold separately. The DIY collection also identifies painting supplies as separate purchases. Check the selected kit's photos and contents so you have the body, interior, windows and base you need before adding upgrades.

Will the 10 mm green wheels fit either kit?

That has not been established here. Both kits list a 10 mm / 12 mm original reference, while the green set has four 10 mm wheels. Width, axle length, hub shape and body clearance still need to be checked.

Should I glue the kit on the first test assembly?

Keep the fitting session reversible so you can inspect and adjust the parts. Decide whether extra adhesive is needed only after the kit fits, the finish is ready and the wheels turn freely.

Can I complete the whole build in one sitting?

Plan around the finish's preparation, recoating and handling times. You can complete the fitting session separately and return for paint and final assembly when each stage is ready.

Choose your first project

Browse the prepared DIY Hot Wheels kits and choose a body you want to finish. Start with its supplied parts, establish a smooth fit, then select any wheel upgrades. For more painting, assembly and wheel guidance, return to the Hobby Learning Center.

Muncle Mikes is an independent reseller and customizer and is not affiliated with or endorsed by Mattel.

Planning graphics for your project? Browse printable Hot Wheels and 1:64 waterslide decal PDFs. These are digital downloads only; decal paper, model and tools are sold separately.