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Thread: Low crawl ratio
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Old 09-03-2008, 02:48 PM   #6 (permalink)
1911
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Location: Parker County, TX and Santa Fe County, NM
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Re: Low crawl ratio

Quote:
shane4x4 previously said: View Post
You can certainly 'crawl' uphill slower with an auto, since you can ride the brakes to control your speed.
The other advantage of an AT in an uphill crawl is the torque converter. Since it doesn't lock up in lower gears or low speed, you get some additional low speed control over and above the mechanical gearing. It's not mechanically efficient (wasting energy by dissipating heat), but for a truck as powerful as the FJC it works pretty well. I've heard claims that the torque converter essentially doubles your crawl ratio but have never seen any hard proof of that figure and am a little skeptical myself.
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