What happens when you put bigger tires on a Jeep Wrangler?
Adding bigger tires essentially reduces your gear ratio, which also reduces your crawl ratio and robs your Jeep of power. This can be corrected by upgrading your gearing. This site will help figure out what gearing you need in order to get you back to your original ratio. Example: You have 3.73 gearing and have 32” tires. You upgrade to 35” tires.
How is tire size and axle gear ratio related?
This page is a Differential Gear Ratio Chart for comparing tire size to axle gear ratio and the combined effect on power and fuel economy.
When do you change the gear ratio on a jeep?
When you change tires on your Jeep from the stock size to the larger tires to give your lifted Jeep the look you want, a change in gear ratio is necessary to give you the optimum power ratio. There is a direct correlation between tire size and the gear ratio. Here is a chart that shows optimal gear ratios for lifted Jeeps with larger tires.
What kind of tires should I get for my Jeep Wrangler?
Most offer a mileage warranty between 40-60K miles and some have a 3-Peak Snow Flake rating for winter driving. With aggressive tread patterns and larger lugs, these tires offer extraordinary gripping power in all kinds of off-highway terrain, especially wet snow and mud.
How big is the rear axle on a Jeep Wrangler?
The YJ Dana 30 hold a reverse cut ring and pinion, but the TJs do not. Both TJs and YJs, however, use a 5×4.5 inch bolt pattern. Dana 35: This was an axle size used on most Jeep rear axles. They had a ring gear diameter of 7 and 9/16 inches. They came with either a 3.21 or 4.10 gear ratio.
Adding bigger tires essentially reduces your gear ratio, which also reduces your crawl ratio and robs your Jeep of power. This can be corrected by upgrading your gearing. This site will help figure out what gearing you need in order to get you back to your original ratio. Example: You have 3.73 gearing and have 32” tires. You upgrade to 35” tires.
This page is a Differential Gear Ratio Chart for comparing tire size to axle gear ratio and the combined effect on power and fuel economy.
What should the gear ratio be on a Jeep Wrangler?
Jeep JK Gear Ratio Chart for the 3.6L and the Automatic Trans. *Note* Red cells are the minimum allowable gear set. Expect sluggish performance, minimal overdrive use, and low elevation trails. Green cells are acceptable gear sets for daily driving, constant overdrive use, and slightly complex trails with moderate elevation changes.