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Differentials

A differential is a mechanical device that transfers torque from one shaft to two other shafts. These devices are frequently used in the automotive industry and come in a variety of forms depending on the application.

1,107 Questions

Difference between differential lock and limited slip differential?

The differential is essentially one link in the chain of components that transmit power from a car or truck's engine to the wheels. The differential transmits different amounts of power to the wheels at a right angle from the drive shaft to one of the car's axles. A locking differential will transmit the same amount of power to both wheels on the axle - which is very useful in 4WD applications where a truck might be stuck and have problems getting out of deep mud or snow. Limited slip and open differentials will allow the wheels to get varying amounts of power from the engine, affecting the amount of traction your wheels can attain. For instance if you are in a 4x4 truck and you are stuck on some rocks with one wheel in the air, an open differential senses that one wheel of the axle isn't getting much traction and will send more power to the wheel in the air, which is ineffective. But if you have a locker, it will apply the same amount of power to both and you'll be able to get free.

How do you determine the axle gear ratio of a 1997 jeep wrangler sport?

There are three ways. 1: Some axles have tags on them that list axle ratio, required fluid, posi if equipped. 2: The dealer can tell from the VIN number. 3: If you count how many times you have to turn the drive shaft to get 1 full turn of the tires. ie: 3.5 turns to get 1 turn would be a 3.55:1 ratio.

Where can you find the specs and the tear down for a 2001 jeep wrangler rear end differential on the web?

Go to your local book store i.e. Barnes and Noble and get a Haynes Manual for the vehicle. They will order it for you if not in stock. The book will be about 20 bucks. Incredible book, well worth the 20 bucks and gives info for complete tear down of the entire vehicle.

What is the torque for the pinion nut on a 68 Camaro 10-bolt rear end?

There are a couple different methods to correctly torque the nut on the pinion. One way that I have used in the past with excellent results,is to tighten the pinion nut real good and snug just as you feel the crush sleeve begin its resistance,and then you actually place an "inch pound" torque wrench(Dial or Bar style tends to be a little quicker and more exacting than a click style) with correct socket on pinion nut and rotate the pinion by way of the smaller torque wrench (ring gear and carrier removed).If the inch-pound torque wrench doesn't click before the pinion rotates(inch-pound wrench set approx @12-15),then snug the pinoin nut up with your 1/2 drive impact more.Tighten nut in SMALL increments.Dont overshoot it,other wise you run the risk of wasting the one time use crush sleeve and burning up the pinion bearings.If say the wrench clicks @10,11,12ish before the pinion rotates,but if set @ 15 or so,and the pinion rotates before the torque wrench clicks, you are in the right area.What you are doing is measuring the amount of "rotational drag" on the pinion with the inlb torque wrench.Another way is if the crush sleeve is replaced with a solid spacer,the nut can be torqued down with a regular pop wrench to about 60-75 ft/lbs.

What is the gear ratio of 2.5 ton rockwell axles?

There are four ways to find a ratio.

1 A dealer can normally tell from the vin number.

2 There are normally tags or labels on the axle that have part number, gear ratio, and fluid requirement

info.

3 You can count how many times you have to turn the driveshaft to get one complete turn of the tires.

4 You can divide the number of teeth on the ring gear and divide by number of teeth on the pinion.

Transfer case for 83 full size blazer--305 what type of fluid for the transfer case?

Every new process transfer case I have ever worked on took 80\90, which you can identify by smell.

My '84 Jimmy with a 700R4 trans uses ATF in the transfer case. Easy enough to tell when you open the fill plug, or if changing the fluid, you'll see when draining.

What separates a sea from a ocean?

Nothing its just that a sea is in the ocean its like a small part of it

It's written in the QURAN of the Muslims that god seperats the seas from the oceans but this answer is only from my opinion and nothing scientifically prove anything yet

You need rear axle pinion nut torque specs for a 98 Chevy 12 ton pickup 2wd?

The nut is generally torqued to 260/300 ft lbs, or 25 inch/lbs for new bearings and crush sleeve installed, or around 12/15 inch/lbs for old stuff.

What is the purpose of a drive shaft?

The purpose is to transmit power from the transmission to the wheels

What rear end differential does it have?

want to know what rear end it has for a replacement

How can I replace a 2001 dodge ram transmission sensor?

There are two sensors on a 2001 dodge ram. Input speed sensor and out put speed seed sensor. The first is used to measure torque converter speed and the second is used to measure output shaft speed. The output speed sensor provides the signal for the speedometer over 11 mph. Replacement is the same for both, disconnect the wiring connector, using a deep well socket, remove the sensor, install the new sensor in reverse order. Care should be taken when removing the sensor, transmission fluid will come out. This operation should not be done on a hot transmission.

What kind of fluid does your differential take?

Depends on make, model, year. Most use a gear oil, could be 75w90, 80w90, 75w140......toyota corolla 1991 automatic

Is it expensive to convert an automatic transmission to manual in a 2000 Volkswagen Beetle?

Yes it will cost quite a bit because you have to buy a whole new Tranny, all the associated linkage, also you will need a clutch and new flywheel for the engine, and hopefully the car has a hole already cut in the firewall for the clutch pedal link. If I were you I would expect to pay somewhere from 3,500-5,000 in parts and that don't even count getting it installed.

What would the gear ratio be if you had 41 teeth on the ring and 10 teeth on the pinion?

That is a 4:10 gear ratio. Just divide the number of teeth on ring gear into the number of teeth on the pinion gear and then round it off and that will be the gear ratio.

How do you find the gear ratio on a dodge 1500?

There are four ways to find a ratio.

1 A dealer can normally tell from the vin number.

2 There are normally tags or labels on the axle that have part number, gear ratio, and fluid requirement

info.

3 You can count how many times you have to turn the driveshaft to get one complete turn of the tires.

4 You can divide the number of teeth on the ring gear and divide by number of teeth on the pinion.

What is the Gear ratio for Suzuki samurai?

There are three ways to find a gear ratio.

1 A dealer can normally tell from the vin number.

2 There are normally tags or labels on the axle that have part number, gear ratio, and fluid requirement

info.

3 You can count how many times you have to turn the driveshaft to get one complete turn of the tires.

What is the gear ratio for a 1994 s-10 Tahoe front axle?

There are four ways to find a ratio.

1 A dealer can normally tell from the vin number.

2 There are normally tags or labels on the axle that have part number, gear ratio, and fluid requirement info.

3 You can count how many times you have to turn the driveshaft to get one complete turn of the tires.

4 You can divide the number of teeth on the ring gear and divide by number of teeth on the pinion.

How many teeth are on a ring gear and pinion for a 4.11 gear ratio?

One key to this design problem is to remember that gears must have a whole number of teeth. It is impossible to roll a gear against another gear that has, say, half, a tooth somewhere among the whole teeth. So gears always have a whole number of teeth.

Another key is that the gear ratio is the ratio of the numbers of teeth on two gears, N1 divided by N2. The result of this division often produces a fraction AND the fraction is often ROUNDED OFF in printed materials. Because of this round-off, you cannot be certain what the actual fraction is. This means that, even when you find whole-number values for N1 and N2, you cannot be certain that they represent the exact numbers.

So, here is how to find the pair of gears from a given gear ratio such as 4.11. First, examine the fraction, 0.11, from the ratio. Find a whole number m such that m times the fractional part of the gear ratio gives another whole number almost exactly? Try m = 2, 3, 4 ... up to 16 or even more until you find a good fit.

For the given problem, 9 x 0.11 = 0.99, which is almost 1.

That whole number m is the SMALLEST possible number of teeth for one gear.

Multiply the gear ratio by m and round to a whole number to get the least number of teeth on the second gear. So, 9 teeth is the smallest number of teeth for one gear and 9 x 4.11 = 36.99 (that is, 37) is the smallest number of teeth for the other gear.

You can multiply the number of teeth on both gears by any whole number without changing the gear ratio. So, 2 x 9 = 18 teeth and 2 x 37 = 74 teeth also have the ratio 37 / 9 = 4.11111...

Here is how to tweak the result if the fraction you chose didn't give a satisfactory result:

Multiply the number of teeth from the trial answer by any whole number, say 2 or 20.

20 x 9 = 180 and 20 x 37 = 740

Now subtract 1 from the number of teeth on the larger gear and calculate the gear ratio.

740 - 1 = 739 and 739 / 180 = 4.105555...

Alternatively, add a tooth to the larger gear and check that ratio: 741 / 180 = 4.116666...

One key to this design problem is to remember that gears must have a whole number of teeth. It is impossible to roll a gear against another gear that has, say, half, a tooth somewhere among the whole teeth. So gears always have a whole number of teeth.

Another key is that the gear ratio is the ratio of the numbers of teeth on two gears, N1 divided by N2. The result of this division often produces a fraction AND the fraction is often ROUNDED OFF in printed materials. Because of this round-off, you cannot be certain what the actual fraction is. This means that, even when you find whole-number values for N1 and N2, you cannot be certain that they represent the exact numbers.

So, here is how to find the pair of gears from a given gear ratio such as 4.11. First, examine the fraction, 0.11, from the ratio. Find a whole number m such that m times the fractional part of the gear ratio gives another whole number almost exactly? Try m = 2, 3, 4 ... up to 16 or even more until you find a good fit.

For the given problem, 9 x 0.11 = 0.99, which is almost 1.

That whole number m is the SMALLEST possible number of teeth for one gear.

Multiply the gear ratio by m and round to a whole number to get the least number of teeth on the second gear. So, 9 teeth is the smallest number of teeth for one gear and 9 x 4.11 = 36.99 (that is, 37) is the smallest number of teeth for the other gear.

You can multiply the number of teeth on both gears by any whole number without changing the gear ratio. So, 2 x 9 = 18 teeth and 2 x 37 = 74 teeth also have the ratio 37 / 9 = 4.11111...

Here is how to tweak the result if the fraction you chose didn't give a satisfactory result:

Multiply the number of teeth from the trial answer by any whole number, say 2 or 20.

20 x 9 = 180 and 20 x 37 = 740

Now subtract 1 from the number of teeth on the larger gear and calculate the gear ratio.

740 - 1 = 739 and 739 / 180 = 4.105555...

Alternatively, add a tooth to the larger gear and check that ratio: 741 / 180 = 4.116666...

Which rear is better 3.73 or 3.42?

Depends on needs. Fuel mileage, power, etc.....

What is gear ratio on 2001 Kia?

There are three ways to find a gear ratio.

1 A dealer can normally tell from the vin number.

2 There are normally tags or labels on the axle that have part number, gear ratio, and fluid requirement

info.

3 You can count how many times you have to turn the driveshaft to get one complete turn of the tires.