Outside of a numerically
higher axle gear ratio of 3.36:1 and a 6,000 - rpm tach, the rest of truck is identical to its oil - burning brethren.
The Wrangler Unlimited offers three
different axle gear ratios that the driver can choose from to enhance the capability of the SUV and the fuel efficiency!
It helps to understand transmission gear ratios, how they affect
rearend axle gear ratios and why it's so important to match these transmission and axle ratios properly.
The overdrive gear lowers the engine rpm but customers often change to a numerically
higher axle gear ratio to drive at modern highway speeds.
A variety of
axle gear ratios are also available for the 2018 Jeep Wrangler: 3.21, 3.73, and 4.10.
The Wrangler JK offers three
axle gear ratios (3.21, 3.73 or 4.10) to choose from to optimize the fuel efficiency of the SUV!
Axle gear ratios were available to handle the different drivetrains and tire sizes, with ratios of 3.91:1, 4.10:1, 4.30:1, and 4.56:1.
To select the ideal gear ratio, you must take into account vehicle weight, engine camshaft specs, the powerband, optimum engine rpm, intended vehicle use and
the axle gear ratio.