How to calculate the gear ratio of a jeep?

How to calculate the gear ratio of a jeep?

When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. A good way to calculate this is to multiply .12 by your Jeeps tire diameter (Example: .12 X 38″ = 4.56). Here at JeepHut we have a made an easy to read chart to help you decide what is on the best gearing for your Jeep.

When to change gear ratio on XJ Cherokee?

After you’ve lifted your XJ Cherokee you’ll probably want to put some larger tires on it. If you’re upgrading to 31-inch tires you’ll probably be fine with the stock gear ratios in your axles. If you’re upgrading to 33 or 35-inch tires, however, you’re going to want to change the factory gear ratios.

What should the gear ratio be on a 37 inch tire?

If you’re running an AW4 automatic, a good gearing ratio for 37-inch tires is 4.88:1 or 5.13:1 gears. If your Jeep is equipped with an AX-15 automatic you’ll probably want 4.56:1 gears. At this tire size, your Jeep won’t be very street friendly so an even lower gear ratio than what we recommend might be better for crawling.

What should the gear ratio be on a crawler?

If you’re building a crawler you’ll obviously want an even lower gear ratio for more torque. Below is a handy chart that can be used as a guideline when decided your gear ratio. You can also use the equation of stock tire height times stock gear ratio all divided by your desired tire size.

When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. A good way to calculate this is to multiply .12 by your Jeeps tire diameter (Example: .12 X 38″ = 4.56). Here at JeepHut we have a made an easy to read chart to help you decide what is on the best gearing for your Jeep.

After you’ve lifted your XJ Cherokee you’ll probably want to put some larger tires on it. If you’re upgrading to 31-inch tires you’ll probably be fine with the stock gear ratios in your axles. If you’re upgrading to 33 or 35-inch tires, however, you’re going to want to change the factory gear ratios.

How to find the right gear ratio for your tires?

Gear Ratio Calculator – Choose the right Gears for your Tires! Gear Ratio Calculator – Choose the right Gears for your Tires! When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. A good way to calculate this is to multiply .12 by your Jeeps tire diameter (Example: .12 X 38″ = 4.56).

When to replace the speedometer gear on a jeep?

If the ring and pinion and/or tire size has changed on your Jeep vehicle, then you will want to replace the factory speedometer gear with the corresponding gear on the chart below. The chart lists the gear ratio and tire diameter to easily guide your purchase into the correct size application.

How to check your gear ratio without removing the cover?

One way to determine your gear ratio is to check the tag attached to the front 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 would indicate the stock axle ratio.

What should my gear ratio be for changing tire sizes?

Here’s a great little TJ gear chart to find out what gear ratio would be good for you if you are changing tire sizes. Keep in mind that this is in no way a definitive answer. A lot will depend on what type of terrain you wheeling, how much on-road/highway driving you do, what MPG you are aiming for, etc etc.

What kind of gearing do I need for my Jeep?

That would give me lots of gearing for mud and hill climbs, decent power at a higher RPM on the highway, and the usual horrible MPG like I expect out of my jeep (only worse than stock)! Stock gearing in my jeep is 3.07, and the stock GSA tires are about 28″ in size. 27.7″ x 8.5″ to be exact.

One way to determine your gear ratio is to check the tag attached to the front 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 would indicate the stock axle ratio.

What kind of gear set does a Wrangler have?

Wranglers that are equipped with the Rubicon package typically come with the 4.10 gear set in their Dana 44 axles. The chart below shows the relationship between gear ratios and tire size. The numbers across the top are gear ratios, the numbers down the left side are tire sizes in inches, and the 4 digit numbers in the white boxes show RPM.

Wranglers that are equipped with the Rubicon package typically come with the 4.10 gear set in their Dana 44 axles. The chart below shows the relationship between gear ratios and tire size. The numbers across the top are gear ratios, the numbers down the left side are tire sizes in inches, and the 4 digit numbers in the white boxes show RPM.

What should I change in my Jeep Wrangler?

Depending on how you use your Jeep, you may want to consider changing out your differential’s ring and pinion gears for a set more appropriate to your build. Whether you need the MPGs or the horsepower, and new set of gears can change the attitude of your rig.

When do you need to upgrade a wrangler differential?

Certain differentials can only accommodate certain size ring gears. Generally, the higher numerically you go in gears, the bigger the ring gear. Should you need to upgrade the differential’s carrier, this is the time to decide if you want to upgrade to lockers.

Depending on how you use your Jeep, you may want to consider changing out your differential’s ring and pinion gears for a set more appropriate to your build. Whether you need the MPGs or the horsepower, and new set of gears can change the attitude of your rig.

Certain differentials can only accommodate certain size ring gears. Generally, the higher numerically you go in gears, the bigger the ring gear. Should you need to upgrade the differential’s carrier, this is the time to decide if you want to upgrade to lockers.

What’s the crawl ratio on a jeep TJ?

Also keep in mind that this is a general chart. It does not take into account what transfer case you have.. If your TJ is not a Rubicon you will have a NV231 t-case and 2.71:1 crawl ratio. If you have a Rubicon you have a NV241 t-case and a 4:1 crawl ratio. This has a very big effect when you are wheeling in 4-low!

What’s the gear ratio on a Honda Wrangler?

Some of the possible ratios include 3.07, 3.55, 3.73, and 4.10. Wranglers that are equipped with the Rubicon package typically come with the 4.10 gear set in their Dana 44 axles. The chart below shows the relationship between gear ratios and tire size.

Do you need ring and pinion gears on Wrangler?

Unless you’re familiar with wrenching on your Wrangler (more than oil changes and filter swaps), we highly recommend bringing your Jeep to a professional to have ring and pinion gears installed. What follows is a simplified version of how to install gears in your Jeep.

When do you need shorter gears on Wrangler?

If you are planning on doing a lot of off-roading or are only upgrading to a larger set of tires, you should probably install shorter gears. When larger tires are installed, you have several things working against you: the diameter of the tire, rotational mass, rolling resistance, and the added weight of the tires.