Video: American Powertrain’s Closer Look At The Tremec Magnum 6-Speed


If you’ve ever experienced the smooth-shifting and easy-cruising overdrive of a late-model stick-shift Challenger, then you’ve probably been blessed to have rowed your own with the TREMEC TR-6060. As far as OEM-applied 6-speed manual transmissions go, the 6060 might be one of the best known, making its way behind the likes of modern Hemi Challengers and V-10 Vipers.

What many don’t know is that TREMEC designed the 6060’s sibling, the TREMEC Magnum 6-speed, with hot-rodding in mind. While there are several similarities between the two, Robert Hall, owner of American Powertrain, was careful to explain the advantages of the Magnum in a recent video.

“You’ll notice that the Magnum, which is the aftermarket version of the production car 6060, has a lot of features that you will not find on the production car transmissions,” Robert says.

For example, while most 6060s use an integrated bellhousing, the Magnum was designed with a removable front plate for maximum versatility in matching up to an assortment of bellhousing patterns. The Magnum also provides modular shifter locations whereas the 6060 generally only has a single, vehicle-specific location. Furthermore, while the 6060 doesn’t always have a provision for a speedometer output, the Magnum can handle a mechanical or electronic speedometer adapter.

All of that’s fine and dandy but, to be honest, he had us sold in the first 20 seconds of the video, saying, “This thing has fantastic gear ratios, it holds 700 foot-pounds of torque, and will shift at 7,000 RPM right out of the box.” That’ll do.

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Kent Will

News Editor Kent grew up in the shop with his old man and his '70 Charger R/T. His first car was a 1969 Super Bee project when Kent was fourteen. That restoration experience lead to pursuing a degree in Mechanical Engineering and a career in manufacturing. Since then, the garage has expanded to include a '67 Satellite, a '72 Scamp, and a 2010 Mopar '10 Challenger.

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