The ratio is the number of teeth on the driven gear (ring) divided by the number of teeth on the drive gear (pinion)
. So, if the ring gear has 37 teeth and the pinion has 9 teeth, the ratio is 4.11:1. That also means that for every one turn of the ring gear, the pinion will turn 4.11 times.
What does a 4.10 gear ratio mean?
Gear Ratio:
the ratio of the ring and pinion gears in the rear axle
. So, if you have a 4.10:1 (sometimes 4.10) rear axle, the pinion will turn 4.10 times for every single turn of the ring gear or in other words, for every 4.10 turns of the driveshaft, the rear wheel will spin once.
What is a 5 to 1 gear ratio?
For example,
if a motor drives a 12T gear to a driven 60T gear on an arm, the 12T driving gear has to rotate 5 times to rotate the 60T driven gear once
. This is known as a 5:1 ratio. The torque output is 5 times as much, however, the speed output is only 1/5.
Can I run 35s with 3.73 gears?
You can do it but it’s definitely not ideal
. The ratios with a 5.13 first on a 3.73 rear end and 35’s (your proposed setup) is very slightly taller than what a stock 6MT Tacoma is in first gear so it’s not like you’re going to be causing massive wear getting started.
What is the best gear ratio for speed?
In the real world, typical street machines with aspirations for good dragstrip performance generally run quickest with
4.10:1
gears. Lower gears are required if the car is very heavy, or if the engine makes its power at the upper end of the rpm scale.
What are 3.92 gears good for?
But opt for the higher 3.92 axle ratio and that same truck packs a
higher towing capacity of 9,930 pounds
. The extra towing capacity comes about because the increased engine spinning helps improve off-the-line acceleration and pulling power when carrying heavy loads.
Is 3.55 or 3.73 gears better?
PERFORMANCE: The larger the axle ratio number, the quicker the truck will accelerate. For example, a truck equipped with 3.55:1 axle gearing will accelerate faster than one equipped with a 3.31 axle ratio. Similarly,
a pickup with a 3.73 axle ratio will be faster than one with 3.55s
.
What does 3.55 axle ratio mean?
Performance: Looking again at the ratios used above, the higher 3.55 ratio indicates
faster acceleration whether the truck’s empty or loaded
. The higher the ratio, the more revolutions per minute. Towing: For pickup trucks released after 2010, the best axle ratio for towing falls somewhere between 3.55 and 3.73.
Do gear ratios add or multiply?
For example, for the gear at left the blue gears are 7 and 21 teeth, while the green gears are 9 and 30 teeth. Thus, the first gear ratio is 7:21 and the second is 9:30.
Multiplying the two together
gives (7×9):(21×30) = 63 : 630, which is 1:10.
How do you calculate gearing?
How to Calculate the Net Gearing Ratio. Net gearing can also be calculated by
dividing the total debt by the total shareholders’ equity
. The ratio, expressed as a percentage, reflects the amount of existing equity that would be required to pay off all outstanding debts.
What gears for what speed?
Remember each car will be geared slightly differently, but a good rule of thumb for changing gears is that first gear is for speeds up to 10 mph, second gear is for speeds up to 15 mph, third gear is for speeds up to 35 mph, fourth gear is for speeds up to 55 mph, fifth gear is for speeds up to 65 mph, and sixth gear …
Are 373 Gears good for 35 inch tires?
You will be fine. Just gonna lose mpg and slow your truck down
. I have run 35s with 3.73s and no issues at all. In fact, my recent Plat had a 4-inch lift, heavy 34.5 inch Nitto Trails, and 3.55 gears, and ran great!
What gears should I run with 35s?
If it’s an automatic, you’ll ideally want
4.56 gears
. 4.10 isn’t bad at all on the highway with 35s, but 4.56 is perfect. That’s about perfect.
How much does Regearing cost?
Some places charge $150/hour for labor. Find a local shop that charges $75 or so. $1500–maybe a little more–for all of that work. You should be able to find a quote in the $1200 range, but then they ask, “You don’t really want to keep them old bearings in there, do you?” That bumps it up into the
$1500-1700 range
.
How do I know my rear gear ratio?
Turn the wheel TWO revolutions and count the number of driveshaft turns
. The number of driveshaft rotations will help you determine your rear axle ratio. For example, if it turned 3 and a half times, it’s a 3.50:1 ratio. If it turned 4 and a quarter times, it’s a 4.25:1 ratio.
Which rear end gear ratio is best?
The most popular rear-end ratio in trucks today is the
3:55
, which sort of averages towing power and fuel economy. This is a good ratio for the occasional towing or hauling individual. For a person who tows more often, and heavier loads, the 3:73 or 4:10 may be more appropriate.
What gear ratio is best for drag racing?
– The trans gear ratio that is
1:1
will make the most power as it is the most efficient. For example, a 4 speed manual trans with 1:1 will make more power than 3rd gear. 2nd and 1st gear will make progressively less power.
What are 3.21 gears good for?
The 3.21 hits 60 right after shifting into 3rd. – towing:
for trailers at or under 8k
, the 3.21 is fine. Yes it will operate one one gear lower pretty much the whole time, and be a little slower from a stop, but easily plenty of power.
What’s better 3.92 or 3.21 gear ratio?
There’s a reason the
3.92 is an at-cost option. It’s the most preferable ratio
. Having said that, if MPG is your primary objective, the 3.21 is the way go to with the diesel. On a gas engine, the RPM range is so great that gear ratio doesn’t make a lot of difference in efficiency.
Is 3.21 a good gear ratio?
So, to return to the same example,
a Ram 1500 with the standard 3.21 axle ratio will get better fuel economy than a truck fitted with the 3.92
. If towing isn’t your primary concern, the standard axle ratio is probably your best choice to balance towing capability and fuel economy.
What are 410 gears good for?
This equates to a greater amount of power transferred to the wheels. Installing 4.10 gears
improves the car’s performance on the track but with negligible effects to the highway driving
. If your car is equipped with an overdrive, you may not even notice a difference in gas mileage with the new higher gearing.
What are 3.31 gears good for?
Normally, the 3.31 would get you
better gas mileage, on highway
. But, with the 3.55 you will get a bit more pulling power so less time at higher RPM to get your trailer moving and when going uphill. If most of your towing is flat highway, the 3.31 should do you fine.
What are 3.55 gears good for?
3.55 will give you
a little better gas mileage on the highway and slightly more highway oriented performance
. 3.73 may be better for towing, lower end power (off the line acceleration), and may result in worse gas mileage on the highway.
What does 4.88 gear ratio mean?
If you had something like 4.88’s, then
your drive shaft (engine) would need to spin almost 5 times for every one rotation of the tire
. So think of it like this, ride a 10 speed bike.
What is a 3.31 ratio regular axle?
Consider that with a 3.31 axle ratio,
the driveshaft turns 3 1/3rd times for every revolution of the rear wheel
. With a 4.30 ratio, it turns 4 1/3rd times for every revolution of the rear wheel. The numerically higher gear ratio (in this case, 4.30) increases wheel torque and improves acceleration from low speeds.
What is the difference between 3.55 and 3.92 gears?
3.92 is about 10% lower than the 3.55
with the same size tire. With the same rearend ratio the standard 17′′ wheels and tires are effectively about 6% lower geared than the 20′′. So you can get about halfway between the two ratios depending upon what you choose for wheel and tire size.
