THE SHOP

Performance & Hotrod Business - July '15

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PERFORMANCE T here's an old saying about rear ends. It's usually heard from crusty old gearheads and goes something like, "All the power in the world don't mean squat if you can't get it on the ground." Translated into easy tech, it means having plenty of horsepower is great, but only if it ends up actually going through the drive wheels and onto the surface you're driving on. Two critical components actually make up that statement, but it almost always is about the rear end. The transmission is the other com- ponent, but its job is to control the engine's rpm for the application. And that makes sense. The rear end, however, is all about turning motor power into wheel speed. Like so many other parts of a performance vehicle, the rear end market is affected by advancing technology, critical installation needs and product development. We asked our sources about those areas to get you the last word on rear ends. Examining What's New We started with technology, and how it's affecting the rear end market. First up, says Brian Shephard, marketing director of Currie Enterprises, is the increasing amount of electronic equipment finding its way to the rear differential. "Starting in late 2004, with the introduction of the new Mustang, we started building the vehicle speed sensor and ABS-compatible rear end units," he explains. "We now offer such units for the Mustang, Jeep JK Wranglers (front and rear), Ford Raptor trucks, Toyota FJ Cruisers and Tacomas and Nissan Titans. Additionally, these units retain the The Rear End's Role Getting all that power to the ground. By John Carollo Shops that work closely with rear end manufacturers will have the inside track on new offerings and the many choices available for today's custom builds. (Photo courtesy Currie Enterprises) 20 n Performance & Hotrod Business n July 2015

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