Measurement Comparison of TREMEC Aftermarket Manual Transmissions

If you’re choosing a new TREMEC 5- or 6-speed manual transmission for your car or truck build, fitment is one of the important considerations. Here’s a guide that provides the critical measurements for all current TREMEC aftermarket lineup. Read More “Measurement Comparison of TREMEC Aftermarket Manual Transmissions”

Swapping a TREMEC TKX 5-speed Transmission in Place of a Toploader 4-speed in a 1966 Ford Mustang

Swapping a TREMEC TKX 5-speed transmission in place of an original Ford Toploader 4-speed is an easy process that transforms the way a classic car drives and feels. For this article, we photographed the transmission upgrade on a 1966 Mustang, which is a great example of how the compact TKX was designed for easy fitment in early Pony cars and muscle cars. The Ford Toploader was one of the best factory 4-speeds you could get during the muscle car era. But it is easy to see how the overdrive, increased torque capacity and improved shift feel in the modern TREMEC TKX 5-speed is a great upgrade. Read More “Swapping a TREMEC TKX 5-speed Transmission in Place of a Toploader 4-speed in a 1966 Ford Mustang”

Choosing the Right Clutch to Go with Your TREMEC Transmission

Choosing the correct clutch for your car or truck is crucial for getting the best performance and driving experience with your TREMEC 5- or 6-speed manual transmission. With a clutch not suited for your car or truck’s powertrain and driving conditions, you’ll end up with not just a poor driving experience, but also increased risk of breaking drivetrain components. In race situations increased risk of clutch failure at a crucial moment that could cost you a victory. The wrong clutch means when you try to shift your own gears all you’re going to get is a grinding reverberation though the shifter followed by some choice expletives. Read More “Choosing the Right Clutch to Go with Your TREMEC Transmission”

Converting a 1979-1993 Fox Body Mustang to a TREMEC TKX 5-Speed Transmission

The TREMEC TKX 5-speed has opened up a whole new world of driving enjoyment for classic and late-model cars and trucks. But many people wonder what is really involved in converting an automatic-equipped car to a TREMEC t-speed. We recently followed along with Knights Automotive in Oveido, Florida, as they made that conversion on a Fox Body Mustang. Read More “Converting a 1979-1993 Fox Body Mustang to a TREMEC TKX 5-Speed Transmission”

TREMEC-Equipped EVs Unveiled at the 2022 SEMA Show

While most of the focus on electric vehicles (EVs) has centered on new-car production, some companies in the automotive aftermarket have been working on electric conversions for classic cars and trucks. At the 2022 SEMA Show in Las Vegas, Electric GT and TREMEC will be showcasing how new developments in EV technology can extend the life of vintage vehicles indefinitely, regardless of gasoline or diesel availability. Specifically, a 1963 Corvette and 19XX Land Rover Defender 90 will be on display in the TREMEC indoor and outdoor display booths (20057 and 81280), while Electric GT (booth 23683) will have an electric-converted 1984 Jeep Scrambler along a working eGT-413 V8 conversion system used in all three vehicles in its booth. And all with TREMEC manual transmissions! Read More “TREMEC-Equipped EVs Unveiled at the 2022 SEMA Show”

TREMEC Two-Wheel-Drive TR-4050 5-Speed Transmission Available Soon

TREMEC is excited to announce the release of a TR-4050 5-speed transmission for two-wheel-drive applications. It’s perfect for truck and SUV enthusiasts looking to upgrade their two-wheel-drive vehicle from an old 3- or 4-speed manual transmission. It’s also a great way to upgrade from a factory 5-speed with a significantly stronger unit. Read More “TREMEC Two-Wheel-Drive TR-4050 5-Speed Transmission Available Soon”

Improve Jeep and 4×4 Performance with the TREMEC TR-4050 5-speed Manual Transmission

The Jeep Wrangler is an iconic off-road vehicle. But through the years, the various models haven’t always had the best manual transmissions. For example, the Jeep YJ (1987-1995 model years) and Jeep TJ (1997-2006) lacked a decent First gear ratio, and owners found the transmissions to be less durable once larger tires and weight were added to the Jeep, including heavier axles and other off-road equipment. The factory NSG370 6-speed transmission found in the Jeep JK (2007-2018) was better, but there was still room for improvement in the eyes of Wrangler enthusiasts. The superior First gear ratio and incredible strength of the TREMEC TR-4050 5-speed manual transmission has made it a desirable upgrade not only for the Jeep Wrangler, but also many other light trucks and 4×4 SUVs. Read More “Improve Jeep and 4×4 Performance with the TREMEC TR-4050 5-speed Manual Transmission”

Common TREMEC Transmission Installation and Conversion Mistakes to Avoid

A trouble-free conversion to a TREMEC transmission starts with good planning. Selecting the right transmission for your application and knowing the accessories and parts required will prevent headaches during the installation. To give you the best tips to make installing a TREMEC 5-speed or 6-speed transmission as easy as possible, we interviewed some of our TREMEC Elite Distributors about common challenges and mistakes encountered – and how you can avoid them.  Read More “Common TREMEC Transmission Installation and Conversion Mistakes to Avoid”

How to Use the TREMEC Gear Ratio Calculator

When building a vehicle, selecting a TREMEC 5- or 6-speed transmission gives you the opportunity to change the vehicle’s axle gear ratio in order to maximize the driving experience. The TREMEC Gear Ratio Calculator makes it easy to experiment with the affect that various ratios will have on the engine rpm at various speeds, letting you choose the ratio that will be best for the way you want to use your vehicle. Read More “How to Use the TREMEC Gear Ratio Calculator”

TREMEC Transmission Maintenance

Love the great performance and smooth shifting of your TREMEC Magnum 6-speed, TKX 5-speed or T-5 5-speed transmission? We thought so. And regular maintenance will keep your transmission in top-performing condition.

Our transmissions are manufactured to strict original-equipment vehicle manufacturing standards, and they do not require much maintenance. The popular Magnum, TKX and T-5 transmissions are often installed in high-performance or race vehicles that require somewhat regular inspection.

In this article, we’ll provide a rundown of what to check, as well as how to perform an oil change on a TREMEC transmission built for aftermarket use. If you have a transmission that came as factory equipment in a vehicle, we recommend that you follow the vehicle-manufacturer’s recommended maintenance schedule and procedures.

For all of this work, the car will need to be elevated to give you access. Secure the car safely using appropriate jack stands. It’s important to check that all transmission and bellhousing bolts are tight, including the transmission mount fasteners. If these work loose, transmission damage can occur.
Look for signs of oil leaks. Specific areas to check are where the transmission bolts to the bellhousing which could indicate an input-shaft seal leak, where the sections of the case come together and the rear-output shaft seal. Any leaks should be remedied; replacement parts and service are available through TREMEC distributors.
Also check the driveshaft U-bolt fasteners. If these become loose, it can cause a driveline vibration, and can eventually cause a leak at the rear output seal.
We recommend that the fluid in a TREMEC Magnum, TKX or T-5 transmission should be changed after its initial 500 miles. The fluid should be changed every 30,000 miles after that. You can use a high-quality Dexron III fluid, or TREMEC HP-MTF™ manual transmission fluid. We developed HP-MTF to provide rugged protection while maintaining responsive shifting. It takes the guesswork out of which oil is correct for my TREMEC aftermarket transmission.
To drain the transmission oil, locate the drain plug. There are two plugs on the side of the transmission. The lower one is the drain and the upper one is for filling. Use a 3/8-inch square drive in the plug to remove it. Capture the drained fluid and dispose of it properly.
Once the transmission is completely drained, clean the threads on the plug and apply a mild thread-locking liquid. Insert the plug and tighten until snug – do not overtighten! Then remove the upper plug.
For most vehicles, you will need to use a pump and hose to get the new fluid into the transmission. Fill the transmission until fluid comes out of the fill hole. Let the excess fluid escape. Apply mild thread locker to the cleaned fill plug and install it in the same way that you did the drain plug. Wipe excess fluid from the outside of the transmission.