0
Short answer, the number of driveshaft rotations to achieve one full rotation of the axles. E.g, a truck with a 3.55:1 gear ratio requires 3.55 turns of the driveshaft to turn the axle shafts one full rotation.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
What is the fastest street legal semi truck?
The speed of a semi truck is determined by the powerplant, transmission, and rear end gear ratios. Take three trucks.. let's say, in this case, three Freightliner Classic XLS... they have the same motor, same transmission, but different rear end gear ratios. One truck has 3.36 rear ends, one truck has 3.70 rear ends, and one truck has 4.11 rear ends.. the truck with the 4.11 rear ends would be the slowest of the three, but better suited for particularly heavy loads. The truck with 3.36 rear ends would be the fastest. The fastest truck I've ever driven was a Peterbilt 389 with a Cummins Select 600 horsepower motor, 13 speed Eaton Fuller transmission, and 3.25 rear ends. It was capable of doing over 140 Miles Per Hour.
What is the fastest street legal semi-truck?
The speed of a semi truck is determined by the powerplant, transmission, and rear end gear ratios. Take three trucks.. let's say, in this case, three Freightliner Classic XLS... they have the same motor, same transmission, but different rear end gear ratios. One truck has 3.36 rear ends, one truck has 3.70 rear ends, and one truck has 4.11 rear ends.. the truck with the 4.11 rear ends would be the slowest of the three, but better suited for particularly heavy loads. The truck with 3.36 rear ends would be the fastest. The fastest truck I've ever driven was a Peterbilt 389 with a Cummins Select 600 horsepower motor, 13 speed Eaton Fuller transmission, and 3.25 rear ends. It was capable of doing over 140 Miles Per Hour.
In a semi truck will you get higher torque and less road speed with a higher gear ratio?
"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.
What is rear end ratio for semi-truck?
It specifies the number of rotations the driveshaft makes for each full rotation of the rear end gear. For example, 3.55 rears means the driveshaft turns 3.55 times for each single full rotation of the rear end gears.
How you stop a semi truck running at 35 mph if you don't have the distance shifting gear by gear?
You have a brake pedal, and it's there for a reason. Those trucks can stop in any gear.
Why is it unsafe to drive a long side of a semi-truck?
They have large blind spots to the rear and on the sides.
What does check for overdrive mean on a semi truck?
It means that the truck in question has an overdrive transmission, as opposed to a direct drive transmission. All other things being equal, a truck with a direct drive and 2.64 rear ends is pretty much equivalent to running a .74 OD transmission and 3.58 rear ends.
How is a trailer different from a semi-trailer?
Trailer is way more bigger than a semi-trailer. Common misconception between a trailer and a semi-trailer. Technically, a trailer has wheels in front and rear and is hitched to a pulling vehicle (car,truck,etc.) A semi- trailer only has wheels in the rear and is hitched to a pulling vehicle (car,truck,etc.)
How do you mesure your wheelbase on a semi truck?
From the center of steer axle to center of rear axle on trailer. If you want just the truck it's the center of steer axle to center of rear drive axle.
How do you down shift a semi?
When downshifting you let the truck run at a low rpm like around 1200 then easly take it out of gear and then rev the truck up about 300 rpm while shifting into the lower gear. Eventually you will get the feel of the truck and sound and will be able to do it in your sleep.
Who invented the Semi-truck?
Who invented the Semi-truck?
Can a semi truck kill a garbage truck?
If the semi truck knocked on the garbage truck, yes.
