Lowrider axle assembly guide

 

Overview of all components

 

 

Before assembly, make sure all 3D printed parts are lightly sanded to remove any rough edges or imperfections from the printing process. This will improve fit and function, and give a cleaner overall look to the final axle assembly.

 

 

Step 1. Smoothing the trailing arm tubes

 

 

These two trailing arm tubes require special attention. Carefully sand off the visible print lines on the outer surface so they will slide press-fit into the main axle housing. Check the fit of the trailing arm ends and lightly drill them out to 3 mm (≈ 1/8 inch) to allow the two brass tubes to slide in smoothly without excessive force.

Carefully re-drill the front of the housing to 3 mm to make room for the aluminum insert.

Glue the brass tube securely into the gear and allow the glue to set fully.

Once the gear is fixed to the brass tube, press-fit the bearing into the housing.

 

 

 

 

Step 3. Align the Arms and Ensure Gears

Check for slight clearance between the gears so they engage correctly. At the back of the gear, you should secure it on the center shaft either by using the brass tube or by inserting a spacer of your choice, depending on your preference.

Only once everything is aligned and secured, glue the two trailing arms. 

Finally glue the center gear onto the center shaft, ensuring it is properly positioned and aligned

Step 4. Attach and Glue the Trailing Arms Links

Once your setup is ready, glue the trailing arms links firmly in place. After this, the assembly is ready for painting.

At the very end, you can choose your finishing touch: add two drum brakes for a classic, vintage feel, or two disc brakes for a sleek, modern look. These act as the end caps of your axle assembly and complete the build.

This is my personal method, but there are many ways to do it. Feel free to adapt the assembly to your own style