Muldoon's Performance Transmissions

about us

our story

Over a decade ago, as the diesel performance industry began to surge, MPT was born with a clear and ambitious mission: to engineer high-performance transmissions that could handle the increased horsepower and torque demands of modern diesel engines. Although factory-installed transmissions often fell short of the durability and performance needed for heavy-duty applications like towing, off-road driving, and hauling, MPT set out to design solutions that would exceed these limitations. From day one, we’ve focused on building transmissions capable of surviving and thriving under the most challenging conditions diesel drivers face.

In the years since we’ve invested significantly in cutting-edge equipment and technology to improve our products continuously. Our advanced repair, testing, and optimization processes ensure that each transmission we remanufacture is held to the highest quality standards. Every unit leaving our facility is rigorously tested to ensure peak performance, consistent power delivery, and long-term reliability. Whether the daily grind or extreme towing conditions, our transmissions are built to perform under pressure and deliver a smooth, powerful experience.

What truly sets MPT apart is our unwavering commitment to precision and excellence. We’ve built strong partnerships with industry-leading experts and suppliers, working closely with them to deepen our understanding of the latest technologies and best practices. This collaborative approach has allowed us to stay ahead of the curve, constantly refining our remanufacturing process to produce transmissions that offer unmatched performance and enhanced durability. By leveraging the insights and innovations from these partnerships, we’ve developed a stringent, multi-step process that ensures every transmission is rebuilt with the utmost care and attention to detail.

At MPT, we believe that building a great transmission goes beyond just meeting technical specifications—it’s about instilling confidence in our customers. Our team of highly skilled and dedicated professionals takes pride in crafting each transmission with a focus on delivering long-lasting results. We understand the importance of reliability in your vehicle, whether hauling heavy loads across the country or navigating challenging off-road terrain. That’s why our team is devoted to producing transmissions that meet and exceed your performance expectations.

When you choose MPT, you’re choosing more than just a transmission, you’re choosing a company committed to delivering excellence in every build. Our transmissions provide durability, power, and confidence you need to tackle any challenge, mile after mile, with unwavering performance. Trust MPT to keep you moving forward, knowing that your transmission is engineered to handle whatever comes your way.

gentleman wielding tank

Our Mission

MPT is dedicated to engineering high-performance transmissions for Dodge Ram diesel trucks that surpass factory standards. By addressing OEM weaknesses, we build durable, reliable transmissions designed to handle the toughest towing, hauling, and off-road demands. Our mission is to deliver superior performance and longevity, ensuring every transmission outperforms and outlasts its stock counterpart. production was pressing.

At MPT, quality is at the heart of everything we do. Every remanufactured transmission undergoes rigorous testing and inspection to ensure it meets our high standards of performance and durability. From heavy-duty towing applications to extreme off-road use, our transmissions are built to handle whatever challenge you throw at them. We use only the highest quality materials and state-of-the-art equipment to ensure that every unit we produce delivers consistent, reliable results, no matter the driving conditions.

In addition to our technical expertise, our team is driven by a passion for performance. We are dedicated to ensuring that every MPT transmission exceeds customer expectations, providing Dodge Ram owners with the confidence that their truck’s transmission will not only meet but surpass their toughest demands. With MPT, you’re getting more than just a transmission; you’re investing in a product that’s engineered to last and built to outperform. Whether you’re a professional driver, a weekend warrior, or an off-road enthusiast, you can trust MPT to deliver a transmission that will keep your truck performing at its peak for years to come.

Our Team

Brian M. - R & R Technician
Eric B. - Technician
Jake T. - Sales
Luis R. - Technician

driven by precision

For quality control, we use stringent testing procedures and rigorous build procedures for all our transmissions and parts.

Testimonials

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Josh Campbell profile picture
Josh Campbell
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I purchased a stage 3 47re from muldoons needless to say I’m very impressed with the shifts and lockup! These guys know their way around dodge transmissions, truly the best in the business!
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Thomas Snow profile picture
Thomas Snow
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68RFE stage 1… By far one of the best experiences iv had at a shop. From scheduling and explaining what I need and getting it done fast. What made it even better, I showed up to pick up my truck “ from Virginia” and John was supposed to leave early. I uploaded my tune and it was incorrect… he stuck around 3-4 hours until I revived my new tune to make sure I could get it done right and head home. Definitely earned a life long customer and I will recommend this place to anyone!
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Mike Smiley profile picture
Mike Smiley
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Muldoons Diesel Performance is a legitimate company, they were great to deal with and I am very satisfied with the outcome. I highly recommend John and his team to anyone looking for a built transmission.
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Michael Fanelli profile picture
Michael Fanelli
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I had an issue. 2wd slip yoke bushing manufacturing defect or mix-up. After I sent them a measurement, they came to my house with new parts, crawled under my truck, and rectified the issue. Mistakes happen. John dropped everything and got me taken care of. These guys really take pride in their work, and it shows.
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Tammy Allen profile picture
Tammy Allen
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John was patient and amazing to work with. Very knowledgeable and helpful. A++++ customer service.
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Eric Bost profile picture
Eric Bost
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Another 5 star review for Muldoon’s! They were great to work with, I scheduled with them a few weeks ahead of time so that I could limp my truck up from NC with no overdrive / losing my torque converter, and they had a new Towmax installed in 1.5 days! Big thanks to everyone at Muldoons, the transmission is doing great so far and I have been asking a lot of it!
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Isaac Mcneal profile picture
Isaac Mcneal
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Great people, amazing customer service and quality workmanship. What more could you ask for!
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brandon wells profile picture
brandon wells
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Quality parts. And the guy who packed my stuff was not afraid to used packing paper. Stuff was packed tighter in that box than a nuns rear. Slightly disappointed I didn't get any stickers though 😂
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Darren Furlong profile picture
Darren Furlong
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So way back in 2019 I decided to upgrade the 68rfe. I called Muldoons diesel made the apt and drove all night to be there first thing in the am. So now 5 years later still going strong Highly recommend John and crew for 68rfe trans rebuilds! Have not had any issues would go back again. Actually thinking of reaching out to see if there are any updates and just do a refresh on the trans.

instagram videos

Team bonding, Office Space style 😎🖨️

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Not all gifts are great, but the gift of a Muldoon’s transmission is! 

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Never too busy for TikTok time!

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Your day can’t be ruined in you ruin theirs first! 

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Low reverse bushing height is one of those tiny details that can make a huge difference.

Set it right. Don’t guess.

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Shop anywhere, we recommend Muldoon’s 😏

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Sorry John 🔥🍩

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This is why we dyno test. 

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Social media star George 🤩

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They love having their pictures taken!

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