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"Higher" can be a pretty ambiguous term here. Generally speaking, for higher torque and lower road speeds, you'd have taller rear end gear ratios.

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Q: In a semi truck will you get higher torque and less road speed with a higher gear ratio?
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In a semi truck are lower gear ratios going to give better highway mileage per gallon?

No, the lower the gear ratio, the higher the rpm of the crankshaft verses the rmp of the drive shaft, thus more torque. In order to obtain higher torque, the higher the engine rpm and thus the more gas needs to be burned. The reason why Nixon instated 55 mph as the national speed limit is because the highest gear ratio of car (except those with overdrive) was still too low and because of air resistance. Today, cars and semis have wider gear ratio ranges and are more aerodynamic.

What does taking the governor off do to your truck?

It alows your truck to top out at a higher speed then it would with it on.

What 18 speed transmission came in 1998 ch 613 truck?

Either a proprietary Mack 18 speed or an Eaton-Fuller 18 speed. Various models of the Eaton-Fuller were available, from 1600 torque to 2100 torque.

What is the maximum speed of truck dodge d-400 diesel 6cyl 102hp 1965 No load and with the differential ratio of low?

The maximum speed for a Dodge truck would be between 100 and 120. I would not try and go that speed.

What does peak torque means in truck?

"Peak Torque" is RPM of engine that produces the most torque. For example the 'peak torque' on a Ford 6.0L Powerstroke Diesel is 570 ft-lbs@ 2000 rpm. In an engine, especially a diesel, higher rpm does not necessarily mean more torque. Fact is, it drops at a higher rpm than 2000.

How does the torque and RPM varies with change in acceleration and shift of gears in an automobile?

Torque is the force that causes rotation measured in pounds/feet. The more torque, the more rapid the acceleration to the achieved speed. Maximum torque varies from engine to engine based on engine size, and aspiration (turbo vs non- turbo) . In short stroke crankshaft smaller engines, torque occurs at a higher RPM (3,000-4000 RPM) and the transmission should be in the proper gear ratio to allow the engine to achieve that goal. On long stroke engines, usually big truck Diesel engines, maximum torque occurs at a much lower RPM (1,500-2,000RPM) and is limited in it's power band of useful power. That is why large engines have a lot of gears to keep the engine in it's designed RPM power range to do useful work to achieve it's speed goals.

What is the difference between 3.08 and a 3.55 gear ratio in a Class 8 truck?

IF they used the same motor and transmission, the truck with 3.55s would turn higher RPMs at speed, but would be better suited for hills. A truck with 3.55s typically will turn 1500 RPMs at 70 MPH. The truck with 3.08s would turn a lot less RPMs at speed. However, it's extremely unlikely the truck with 3.08s will have the same transmission - it would be geared much too high. It probably has a lower geared transmission than what the truck with 3.55s is using.

How many minutes for 10 miles with truck?

The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.

How do you torque when installing flywheel in a 1979 Chevy truck?

with a torque wrench

Why does your truck shudder when you accelerate in higher gears?

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I have a 4 speed top load trans for a 4x4 Chevy truck im looking for an in between gear between granny and first gear its for a pulling truck?

Think about changing the ratio on your differentials instead.

How do smaller truck tires affect the truck?

If you change your tyre size without switching out the rear end gears to compensate for it, you'll run lower speeds at higher RPMs (which gives you more pulling torque, but kills you on mileage and overall top speed), and your speedometer will show you going faster than you actually are (unless it adjust it to compensate for the smaller tyres).