How To Find Gear Ratio On Nissan Titan
Knowing your gear ratio is instrumental in determining which transmission gear set is all-time suited for your truck. It is also important to know the ratio as well as the tire size to determine which speedometer gear y'all need so your speedometer reads accurately.
Here are three ways to find the gear ratio of your truck:
- The gear ratio is usually listed in the VIN lawmaking located on commuter's door, the glove box, or the ID plate on the dashboard.
- Count the times a rear bike goes around for 1 driveshaft turn: if its three ane/two it'due south a 3.50:1
- Split the number of teeth on the ring gear by the number of teeth on the pinion gear.
Wondering what is the gear ratio in your truck? Allow's look closer at how to find out, and why information technology'due south important.
Why Is Information technology Of import To Know Your Gear Ratio?
The final drive gear ratio is the last flake of gearing betwixt your transmission and the wheels being driven. When you lot change this gearing you lot can drastically affect your truck'southward operation.
If you change to a lower final drive ratio this volition pb to less torque at the wheels just a higher summit speed. Meanwhile, a higher ratio will result in the opposite, i.e. more than torque at the wheels but a lower top speed.
This gear ratio helps make up one's mind how much fuel economy, torque, and towing capacity your truck will accept. A vehicle with a high axle ratio similar 4.10:ane will take more towing capacity than a 3.xv:ane yet, with the added towing capacity comes a lower elevation speed and lower fuel economy. A smaller beam ratio will lack torque for towing but will requite increased fuel economic system.
What you plan on using your truck for determines what gear ratio you need. Is your truck going to be an off road rig that will practice a lot of towing or hauling? You don't want a high speed gear ratio if y'all have a large camper or gunkhole to tow.
Gear ratios are never just arbitrary values, they are highly dependent on the needed torque and power output, as well equally gear and textile forcefulness.
Trevor English
If your truck is like my C10, I desire it to be quick in the quarter and be able to drive 10 to xx mile distances without over revving the engine. Mine is a 3.73:ane and I will tweak it by adjusting my tire size.
The Gear Ratio Could Be In Your VIN Code Or Identification Plate
The VIN is a 17 digit lawmaking that every automobile has to identify and track them. Every number and letter within a VIN reveals data about the automobile, such equally the make, model, year built and the engine size.
Some but not all of these VIN numbers will have a code for the gear ratio of the vehicle, but that will depend largely on the data the manufacturer includes in the vehicle descriptor department (VDS) of the VIN.
Here are three easy steps to assistance you decipher your VIN code:
Step 1
It'southward like shooting fish in a barrel to find the VIN of your vehicle. It can be plant on the sticker on the inside of the commuter'southward side door and is besides stamped on a metal plate embedded in the dashboard to a higher place the steering bike. You tin can also find it on your vehicle's title.
Stride 2
The VDS section is the fourth through eight digits in the VIN number. This section typically includes information such as the vehicle model, engine size and body type. Not every vehicle manufacturer includes gearbox ratios in the VDS just this is where it can be found if it was included.
Step three
There are many places online with VIN decoder data such as Edmunds.com or the National Highway Safety Administration site. The pregnant of the digits and their society of information will vary past manufacturer.
If your VIN number doesn't include gear ratios, cheque in the glove box, that is where I constitute mine. The ratio you find on the VIN or ID tags just holds true if your truck has the original differential and gears in information technology.
There is e'er the possibility of your truck having a tag on one of the bolts property on the differential pan. This would exist actually fortunate to take on a fifty year old truck but I was not that lucky with mine.
A transmission finer transmits the input torque from the engine or motor to the wheels. It achieves this through several gear ratios which provide the precise amount of torque to the wheels to allow the vehicle to accelerate whilst remaining inside the well-nigh efficient RPM range of the engine or motor.
Racecar Technology, 2019
Count Your Bicycle Turns For Gear Ratio
My truck had parts from a few dissimilar donors then I needed to dig a niggling deeper to verify that my tags were correct. An piece of cake way to do this is to count how many times the wheel goes around per drive shaft turn. Here are some simple steps to follow:
- Block your front tires to go along them from moving.
- Jack the back of the truck up so that the back tires clear the ground.
- With the vehicle off the ground place information technology in neutral.
- Put a marking on the driveshaft where you tin see information technology from a safe expanse.
- Every bit you rotate the rear wheel towards the machine front count how many times the driveshaft turns per ane complete wheel revolution. This will give you your ratio.
Here are a few examples of gear ratios:
- 2 ¾ rotations = two.73 gears
- Only past 3 rotations = 3.08 gears
- 3 ¼ rotations = 3.27 gears
- iii ½ rotations = 3.55 gears
- 3 ¾ rotations = 3.73 gears
- Just nether iv rotations = three.ninety gears
- Just past 4 rotations = 4.10 gears
Dividing the Ring And Pinion Teeth to Detect Gear Ratio
If you are still not assured of your gear ratio there is another way to bank check that is 100% accurate. To calculate your gear ratio you lot will demand to remove the differential cover and count the number of teeth on the ring gear and the pinion gear. Divide the number of teeth on the band gear past the number of teeth on the pinion in guild to determine the gear ratio of a truck.
Transmissions are some of the all-time examples of the practical applications of gear ratios. Anyone who has ridden in a car or other motorized vehicle has benefited from transmissions in some course. And every manual is essentially but a agglomeration of gears and gear ratios packed closely together.
Trevor English
Terminal Thoughts
At present we know how to determine what our gear ratios are and too why we need different ratios. I did all iii of these checks on my truck as I wanted to know exactly what I have. Mine turned out to be a non posi-traction three.73:1 which is fine but before long I volition alter change information technology to posi-traction.
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Sources: interestingengineering.com
Racecar Engineering, 2019
Source: https://diytruckbuild.com/3-surefire-ways-to-find-the-gear-ratio-in-your-truck/
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