Fresh fluid helps protect gears and bearings, especially after water crossings, towing or a re-gear. Wrangler JL, JK and TJ and Gladiator JT owners change transmission fluid and gear oil as part of regular maintenance and after drivetrain work.
This category includes automatic transmission fluids such as Mopar ATF+4 and Red Line D6, manual transmission fluids, and gear oils like Motul Gear 300 LS 75W-90. Always check your owner's manual or parts maker for the correct fluid type and capacity. Some lockers and limited slip units need a friction modifier, so check the requirements for your differential before you add gear oil.
Shop fluids from Red Line, Mopar and Currie Enterprises, plus Motul. For engine oil and other fluids, see engine oil and fluids, or browse differentials. Enter your Jeep in the vehicle selector to narrow the results to parts that fit your model and year.