How can I tell the ratio of my differential?
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.
What diff ratio is faster?
A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.
What does a higher diff ratio mean?
Higher ratios mean the engine has to run faster to achieve a given speed. Lower ratios allow the engine to run more economically to maintain that given speed. We’ve got a differential gear ratio of 4.11:1 in our autocross racer.
How do you find the differential gear ratio on a manual transmission?
The gear ratio is calculated by dividing the output speed by the input speed (i= Ws/ We) or by dividing the number of teeth of the driving gear by the number of teeth of the driven gear (i= Ze/ Zs).
How do I know the axle ratio of my truck?
Method 1: Count the number of teeth on the ring gear and the pinion. Divide the number of the ring gear’s teeth by the number of the pinion’s teeth. This will give you the axle ratio.
Are 3.55 gears good for highway?
Rear end gears (2.79’s, 3.00’s, 3.25’s, etc) are great for freeway driving, bit not good for 0-60 MPH or accelerating from a dead stop. Shorter gears (higher numbers) are much better suited for accelerating, such as 3.55, 3.73, 3.91’s, 4.11’s etc. Always remember, for very “give” there is a “take”.
How do I find out the gear ratio in my Ford truck?
How to Find Out the Axle Ratio on a Ford Pickup
- Open the front door on the driver’s side.
- Locate the Truck Safety Compliance Certification Label on the door pillar near the door latch.
- Locate the two-digit code in the box labeled “AXLE,” which is just below the bar code.
What kind of transmission does a 4T65E have?
The 4T65E-HD transmission is the high performance version of the standard 4T65E. It was capable of going behind the LS4 V8, which put down 300+ horsepower at the rear wheels. This makes it far and away the most desirable of the 65E family. As you can see, this version of the transmission was not available for a long time.
Which is the best transmission for a 65E?
4T65E-HD The 4T65E-HD transmission is the high performance version of the standard 4T65E. It was capable of going behind the LS4 V8, which put down 300+ horsepower at the rear wheels. This makes it far and away the most desirable of the 65E family.
Where to find the RPO code for a GM 4T65E transmission?
4T65E Identification These transmissions use many different sized torqe converters depending on which application they went originally went in. The easiest way to determine which of the transmissions that you have is to use the RPO codes. RPO codes can be found on a sticker inside the glove compartment of all modern GM vehicles.
