At first glance, an 18-speed transmission sounds like overkill. After all, most cars get by with five or six gears. But semi trucks are built for an entirely different purpose, and that is moving ...

We feel compelled to start this report by letting you know one of the most important facts regarding installing an Allison 1000 six-speed automatic transmission in a 6.0L, 6.4L, or 7.3L Ford Power ...