Grits & Gears

Expert farming solutions for Central South Dakota.

ECU Tuning, Custom Farming, and Mechanical jobs

Four Brothers.

Generational Farmers.

Same Equipment you Run.

Grits & Gears. The grit to keep going when it’s hard, and the gears to get the job fixed right.

We’re the Weinheimer brothers—four of us raised on the same ground we still farm in central South Dakota.

We built this business on one simple idea: reliable ag services from people who actually do the work. We’ve run the equipment, fixed the breakdowns, and pushed through the long days. We’ve learned what lasts in the field—and what doesn’t.

Custom Farming Services

Precision Agriculture Solutions

From AI-powered weed targeting and variable rate air seeding, to haying and other field work, we handle custom jobs with the same equipment and attention to detail we use on our own ground.

As generational farmers, we understand timing, conditions, and getting the job done right the first time—efficiently and with care for your crop and soil.

Agricultural Mechanical Services

We fix and maintain tractors, trucks, and equipment—simple repairs, regular upkeep, and the work that gets you back in the field when something breaks.

Straightforward service from farmers who know what it costs when something breaks down.

ECU TUNING

Custom-built ECU tunes designed specifically for your tractor model, its place in the series, the equipment you’re pulling, and how you want it to perform in the field.

More power and torque where you need it, better fuel efficiency, and stronger response under load—without buying a bigger machine. Built by farmers who run the same equipment and know what actually works when the work starts.

At Grits & Gears, we provide custom ECU tuning and farming services to enhance the efficiently of your farm equipment and fields.

More Power. Less Fuel. Built for the Way You Farm.