![]() ![]() ![]() A GM 700R4 or 4L60 transmission can be configured in this mode, but a TH350 or a TH400 cannot (they’re pre-electronic transmissions) so they can be either fully automatic or manual, but not a combination of both. The best of all worlds would be an auto-tranny that shifts normally in drive, but can be used like a manual in the first, second, or third (if a four-speed) gears. With all this in mind, it stands to reason that a manual-shifting automatic transmission works best when stacking it against a standard (manual) transmission or a standard automatic transmission. In other words, using second gear-regardless if it’s second/low range or second/high range-gives the driver more precise control of the vehicle’s torque and speed in tight situations than being forced to begin the challenge in first. Starting off in second is also the preferred method to get moving on snow and ice. This isn’t a problem when going downhill (the hold-back usually works wonderfully regardless of the transmission-or type of transmission-involved, and the driver needn’t even touch the brakes), but going uphill can make the driver spin the wheels so badly that the rig doesn’t move-just sits there with spinning tires raising a dust cloud, digging holes, and throwing gravel.īeginning the climb in second shoves less torque at the tires, allowing them to grip rather than spin, and it also allows the driver to achieve a higher speed-if necessary or desirable-at less RPM than would be available in first gear. The problem with most auto-shifters is that they have to begin rolling in first gear. However, starting the climb up a steep hill in second-under (low range) is much easier than being forced to start out in first-under. And an automatic can decide which gear is best for the hill you’re climbing. There’s no pesky clutch to deal with and it frees up the driver’s left leg to work the brake pedal instead of the clutch pedal. As those of us who’ve been playing in the dirt for more than a few years in more than a few different rigs have learned, having an automatic transmission is much better-and easier!-off road than having a manual tranny. ![]()
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