Development Log

ACD 3100 C7 Program Updates

The ACD 3100 C7 Development Program is moving from suspension and chassis development toward physical prototype fabrication.

This page will document that process as it happens—from CAD development and component selection through chassis fixturing, CNC cutting, fabrication, assembly, vehicle integration, and physical testing.

Rather than showing only the finished product, ACD will share the work that goes into developing it.

Follow the development from CAD to the road.

Current Development

Where the Program Stands

The first ACD chassis is being developed for the 1947–1954 Chevrolet 3100 and GMC 100 platform, using a 1950 Chevrolet 3100 as the development vehicle.

Current development centers on establishing the complete vehicle package and translating suspension requirements into the chassis design. C7 front and rear uprights provide the suspension foundation, while control-arm geometry, chassis pickup points, steering placement, coilover motion ratios, ride height, wheel and tire packaging, drivetrain placement, and chassis structure are developed specifically for the truck.

The development process also includes planning the fixtures and manufacturing methods required to accurately reproduce critical chassis dimensions and suspension pickup locations when the design progresses into production.

As development progresses, this section can be updated to reflect the current stage of the program.

CAD Suspension Modeling

Precise CAD geometry development for optimal roll centers, camber curves, and steering response, ensuring vehicle-specific kinematics for the 3100 platform.

Building in Public

The Development Is Part of the Story

Developing a chassis involves hundreds of decisions that are invisible once the finished vehicle is sitting on the ground.

ACD intends to document those decisions and the work behind them. CAD images, suspension development, fixture construction, CNC plasma cutting, machining, welding, component installation, prototype assembly, and testing will be added as the program progresses.

For professional builders and potential customers, this provides a look at not only what ACD is developing, but how and why it is being developed.

It also creates an opportunity for feedback from builders who understand these vehicles and the way high-end restomods are actually constructed and driven.

This page will continue to evolve with the chassis.

The finished product matters. So does the process used to get there.