";s:4:"text";s:4046:" This has a very big effect when you are wheeling in 4-low! Gear Ratio Chart.
There are many choices and it is hard to tell what is best when you have some people telling you one thing and others telling you something else. Towing Capacity of Jeep Wrangler JK. 2007 Jeep Wrangler JK Jeep Wrangler JK Specs. ‡ Requires drilling to fit 1/2" ring gear bolts. There is a direct correlation between tire size and the gear ratio. This calculator will give you the gear ratio, just plug in the numbers.
Both the Jeep Wrangler JK and JK Unlimited were launched from 2007-2018.
• Jeep JK axles have a 5 x 5" bolt pattern
When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. This is because; most of these models are classified either as 3.21 axle ratio or 3.73 axle ratio. After searching and talking to the people I came upon the understanding that nothing seemed to match. The charts I found ranged from very good to bad. If your TJ is not a Rubicon you will have a NV231 t-case and 2.71:1 crawl ratio. Join thousands of other Jeep fans as we tackle Wrangler problems and more.
• 3.21 OEM gear ratio (3.73, 4.10 optional ratios). 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. 08-27-2010, 10:50 PM #16. In 2008, this was changed and the only optional factory gear ratio …
Engine RPM, or the speed at which the engine turns, can be calculated at any speed given the vehicle's tire size, axle ratio, and final transmission gear ratio.
Think about what happens when you change the tire size. ... Jeep VIN Decoder ... Jeepz.com has one of the friendliest Jeep forums on the internet. Numbers are good but gear ratios on paper are nowhere close to realistic when you actually drive the Jeep with all the variables the world throws at it. 4) Real world vs. math. You can't tell me that 3.55 gear ratio he recommended for his 33's will end up driving well or even close to it. Gear Ratio Calculator Go there and enter you numbers to see where you would wind up.
A good way to calculate this is to multiply .12 by your Jeeps tire diameter (Example: .12 X 38" = 4.56). • Standard Dana 44 gears will not fit this axle. As an example, if there are 41 teeth on the ring gear and 10 teeth on the pinion gear, you would have 41/10 = 4.10, giving you the 4.10 ratio. Hummer H3. • Dana 44 JK axles feature an oversize pinion gear. The ratio is calculated by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear.
So why change the gears? 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. Tire Size (diameter) 2. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine RPM at highway speed. JEEPHUT GEAR RATIO AND TIRE SIZE CALCULATOR .
A good way to calculate this is to multiply .12 by your Jeeps tire diameter (Example: .12 X 38" = 4.56).
Okay, so you've torn your pumpkin apart and have the ring gear and pinion gear teeth count.