How do I find out what gear ratio My Ford rear end has?
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.
What gear ratio is a Ford 9 inch rear end?
3.0:1 to 5.0:1
The Ford 9 inch rear end also has the widest variety of ratios on the market, Particularly in the 3.0:1 to 5.0:1 range. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear.
What gear ratios are available for Ford 9 inch?
Choice of Gear Ratios: 2.50*, 2.75*, 3.00, 3.25, 3.50, 3.70, 3.89, 4.11, 4.30, 4.56, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50 NOTE: 2.50 and 2.75 are take out gears.
How do I identify my gear ratio?
Count the number of teeth on the pinion gear and count the number of teeth on the ring gear. Divide the ring gear teeth number by the number of teeth on the pinion. The result is your gear ratio. Note: you may need to round off the number.
How can I tell what gear ratio I have without pulling cover?
So an easy way to determine your actual gear ratio is to check the tag attached to the differential cover by the cover bolts. On the tag there should be some numbering such as 3.54 or 3.73, either of those numbers will give you the stock axle ratio.
Will VIN number tell me gear ratio?
The Gear Ratio Could Be In Your VIN Code Or Identification Plate. Every number and letter within a VIN reveals information about the automobile, such as the make, model, year built and the engine size.
How do I identify a Ford 9 inch rear axle?
Ford 9 inch rear end identification is easy and can be accomplished with nothing more than a deep socket as a “go-no-go” gauge for the bottom two retaining nuts on the center section. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing.
How do I know if I have a Ford 9 inch rear end?
Many enthusiasts will tell you to look for the two dimples in the rear cover to determine if the unit is a 9-inch, but this is not always true. Ford also had an 8-inch third-member rear end that had a dimpled cover. The best test of a 9-inch carrier is to try removing the two lower carrier case bolts.
How do I find the axle ratio on my Ford f150?
How Do I Find the Axle Ratio and Limited Slip of My Ford Vehicle?
- Locate the Safety Compliance Certification Label on the driver’s side front or rear door panel.
- Find the word AXLE under the bar code.
- Find the two-digit code under AXLE.
How do I find the axle ratio on my Ford VIN number?
How to Find Out the Gear Ratio With the VIN Number
- Find the VIN of your vehicle. It can be found on the sticker on the inside of the driver’s side door or on a stamped metal plate embedded in the dashboard above the steering wheel.
- Identify the VDS section, the fourth through eighth digits of the VIN.
Does VIN number tell gear ratio?
The gear ratio is usually listed in the VIN code located on driver’s door, the glove box, or the ID plate on the dashboard.
How do you find the differential gear ratio?
The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear to provide you with a “[result] to 1” ratio. For example, if the pinion gear has 41 teeth, and the ring gear has 11 teeth, the ratio would be calculated as 41/11, which is equal to 3.73 = 3.73:1.
What is the gear ratio for a 9 inch rear differential?
9 Inch Ford rear differential. Most 9″ rear differentials will be the open type. To recognize a Locking 9″ differential, look for a metal tag on one of the bolts that holds the center section to the housing. There is a gear ratio stamped on the tag. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio.
What is the gear ratio of Ford cars?
Ford developed based on solid axle that’s popular as gear for the car in that time. After this technology was released, almost many Ford models rely on this gear. The ratio consists of several numbers between 2.73 and 6.00 that you see on chart. When ration is 3.0, the car uses ring and pinion teeth at 39 and 13 respectively.
Can you change gears on a 9 inch rear end?
The center section of the 9 inch rear end is removable allowing you to swap gears or differentials on a bench. Nine inch Ford rear ends came in many widths and configurations. Depending on the application, the rear end may be heavier duty, be made of high performance materials or have a locking differential.
What is the ring and pinion teeth ratio for a Ford?
After this technology was released, almost many Ford models rely on this gear. The ratio consists of several numbers between 2.73 and 6.00 that you see on chart. When ration is 3.0, the car uses ring and pinion teeth at 39 and 13 respectively.