Our Work

Welcome to our diesel shop portfolio! Here, you'll find a collection of our projects that highlight our expertise in diesel repair and maintenance. From engine overhauls to performance upgrades, our work demonstrates our commitment to quality and customer satisfaction. Explore our past projects to see how we can help keep your diesel vehicles running.

Have we worked on your vehicle before and you want to see it showcased on our website?

Just send your pictures to Simmonsdiesel@gmail.com and we will get you uploaded!

Talk about an absolute pain of a task! This L5P came in not only with a broken glow plug, but with an extractor broken off flush with the top.
After several hours, a lot of patience, some carbide burr bits, and determination, we were able to get it out and repaired without having to remove the head!

🇺🇸 Honoring Our Veterans 🇺🇸
Today, we pause to recognize the brave men and women who have served our country with courage, strength, and unwavering dedication.

At Simmons Diesel Performance, we are humbled by the sacrifices our veterans—and their families—have made to protect our freedoms. Your service allows businesses like ours to do what we love every day.

To all who have worn the uniform: thank you for your service, your sacrifice, and your commitment to our nation. We honor you today and always.

— Simmons Diesel Performance 🇺🇸✨

Enjoying God's gifts every day. One after another, trying to play catch up, and blessed with amazing customers.

Getting another one of our 750 drums setup for this 68rfe.
Sonnax outer drum, Revmax billet steel inner drum, sonnax billet input shaft, and revmax 300m overdrive shaft!

Dont let that creepy noise in your truck scare you, come see us to make it disappear!
#halloween

You're supposed to have a little play in the wheel bearings, right?

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Our Work

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