Rear Axle

Mailbag: How to Identify Your GM 10-Bolt Axle

Q: I have a 1964 Chevy II/Nova with a 194 cubic-inch straight-six engine, Powerglide, and a 10-bolt rear-end. I’m trying to identify the 10-bolt rear axle — I want to know if it is a posi or not. There are no ID tags anywhere. Usually only one tire spins, but sometimes both do. Also, I notice a mysterious

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Swap Feat: Upgrading a Ford 9-Inch Rear Axle with Larger Gears

You’ve been working on lowering your elapsed times all season—bumping up horsepower here, tweaking the suspension there, and practicing your tail off at test and tune night—when you hit that proverbial brick wall. No matter what you do, your ETs won’t budge. What do you do? Try a rear axle gear swap. Changing the gear

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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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