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As important as it is to choose the right gear for your jeep, professional installation is a must. At Steve's Jeep Country, we have the knowledge and experience to recommend the proper gear ratio and the expertise to professionally install it. You will be amazed at what the proper gears will do to restore the performance of your jeep.
For information or estimate on an application not listed below, please give us a call.
Gear Ratio Calculation
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 is an easy to read chart for you to get a good estimation on the best gearing for your Jeep. The three distinct colors below can help you decide what is the right gearing for you...
- Yellow = Best MPG, this is what you would want to get for the best fuel economy and highway cruising.
- Orange = Best Overall, this is good mix of power/MPG and considered best for daily driving.
- Red = Best Power, this will give you the best performance for towing power, but at the cost MPG.
These calculations are assuming a manual transmission at 65 MPH with a gear ratio of 1:1. If you drive an automatic your RPMs will be slightly higher,and if you have overdrive your RPMs will be slightly lower.
DANA 30 FRONT AXLE 1972-1986 CJ JEEP
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