Muldoon's Performance Transmissions

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Meet Gene, Tim & their partner Donato! Not only are Gene & Tim the face of our business, but
they’re the original Doctor’s with over 30 years in detailing experience.

Our Story

The Mission: to engineer transmissions capable of meeting the increasing demands for high horsepower and torque.

Over a decade ago, when diesel performance was rapidly evolving, MPT was founded with a singular mission: to engineer transmissions capable of meeting the increasing demands for high horsepower and torque. As the diesel performance standard rose, we recognized the need for durable, high-performance transmissions that could withstand the rigors of modern driving and towing conditions.

Since then, we’ve invested in state-of-the-art equipment to repair, test, and optimize every transmission we produce. Our commitment to quality control ensures that each unit consistently delivers exceptional performance and reliability. By partnering with top industry leaders, we’ve gained valuable knowledge and expertise, allowing us to refine and perfect a remanufacturing process that is both precise and effective.

At MPT, we don’t just build transmissions—we build trust. Our dedicated team members are passionate about crafting transmissions that provide unwavering performance and durability. You can rely on MPT to deliver a transmission that meets your needs, giving you confidence in your vehicle’s ability to tackle any challenge, mile after mile.

Muldoon's Performance Transmission

Testimonials

Google
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
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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 😎🖨️

#muldoonsperformancetransmissions #diesel #cummins #trending #officespace
Not all gifts are great, but the gift of a Muldoon’s transmission is! 

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Never too busy for TikTok time!

#muldoonsperformancetransmissions #DieselPerformance #cummins #transmission #trending
Your day can’t be ruined in you ruin theirs first! 

#muldoonsperformancetransmissions #diesel #transmission #cummins #ram
Low reverse bushing height is one of those tiny details that can make a huge difference.

Set it right. Don’t guess.

#muldoonsperformancetransmissions #68rfe #DieselPerformance #BuiltRight #diesel
Shop anywhere, we recommend Muldoon’s 😏

#muldoonsperformancetransmissions #diesel #transmission #cummins #shopjokes
Sorry John 🔥🍩

#muldoonsperformancetransmissions #diesel #transmission #cummins #ram
This is why we dyno test. 

#muldoonsperformancetransmissions #diesel #transmission #cummins #ram
Social media star George 🤩

#muldoonsperformancetransmissions #diesel #transmission #cummins #ram
They love having their pictures taken!

#muldoonsperformancetransmissions #diesel #transmission #cummins #ram
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