Differential 101: Everything You Wanted to Know About Eaton Differentials
Eaton is synonymous with automotive differentials. The company helped coin the term Posi-Traction, and its Detroit Locker is arguably the most-famous of all locking differentials. Eaton earned its reputation for producing innovative, robust, and high-performing differentials during the American muscle car era, when OEMs worked with the company on original equipment differentials. Over the years, Eaton’s
Mailbag: Close Ratio vs. Wide Ratio Transmissions & More
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we cover the difference between close ratio and wide ratio transmissions and provide casting numbers for GM differential carriers. R.C. Elmore, AL Q: I have a couple questions regarding driveline performance: First, I have seen the terms “close ratio”
Detroit Locker: History, Anatomy & FAQs About the Toughest Differential in Town
[portfolio_slideshow id=26782] Back in the day, if you needed the toughest, most-capable differential on the street, you ran a Detroit Locker. When you want the same kind of differential today, the choice is still a Detroit Locker. It’s the most durable and dependable locking differential available. The Detroit Locker is an automatic locking differential that
Video: An Introduction to Differentials
Watch this Summit Racing Quick Flicks video and learn the basics of differentials, including the differences between open, limited-slip, and locking, and how each style works in your vehicle.
Mailbag: Identifying Positive vs. Non-Positive Differentials
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re looking at posi- and non-positraction rear-end setups. T.J. • Columbia, SC Q: I’d like to know how to identify positive or non-positive traction configuration on Ford and Chevy rear-ends. Is there a quick way to tell? Can you
How to Choose a Ring and Pinion in 4 Steps
Horsepower is the holy grail of high performance. We love it. We want more of it. We can never seem to get enough of it. So why do many people waste horsepower once they find it? In the seemingly endless search for more horses, muscle car and race enthusiasts often squander existing horsepower by using
Step-by-Step: Upgrading a Ford 8.8 Rear Axle
[portfolio_slideshow id=4926] Although the 8.8-inch rear axle found under zillions of 5.0L and 4.6L Ford Mustangs is a pretty good piece right from the factory, there are a couple of drawbacks: a dismal selection of factory gear ratios (ranging from 2.73 to 3.27) and somewhat weak 28-spline axles. We found out just how easy it




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