Revolution Gear & Axle 2018+ Jeep Wrangler JL Non-Rubicon Dana 35 Rear 4.56 Ratio Gear Package
Most 2018-up Jeep Wrangler JL Sport and Sahara models left the factory with the Dana 35 200 mm rear axle and the Dana 30 186 mm front. Add a lift and 33- or 35-inch tires and those axles are still turning the original ratio, so the JL feels slow off the line, the speedometer reads low and the automatic keeps dropping out of its top gears. This Revolution Gear & Axle package, part number REV-JL-200/186-456, puts both axles on a 4.56 ratio with a front ring and pinion, a rear ring and pinion and a Timken master install kit for each axle.
On a non-Rubicon JL the driveshafts feed a 24-spline pinion in the Dana 35 M200 rear and a 26-spline pinion in the Dana 30 M186 front, per Revolution's package specifications. Each ring and pinion multiplies driveshaft torque before it reaches the axle shafts. A taller tire undoes part of that multiplication, which is why a stock-ratio JL on 35s feels like it lost horsepower. Moving both axles to 4.56 restores the reduction the tire took away and keeps engine RPM where the powertrain makes torque. Revolution cuts these gears from 8620 steel and supplies a full bearing kit for each axle, so the old bearings that have already lived with the factory gears are not reused.
Start by checking what rear axle your JL has. A Dana 35 rear has a smaller housing than the optional Dana 44, and the axle tag or build sheet will show it. If your Jeep has the Dana 44 rear, use the Dana 44 rear package instead. Count ring and pinion teeth if the tag is gone; ring teeth divided by pinion teeth equals the ratio. Note whether a front locker is fitted, because a carrier change on either axle adds parts and cost. If your goal is a front locker as well, the Eaton ELocker4 for the Dana 30, 3.73 and up is listed for non-Rubicon JL front axles and is best installed while the front is apart for gears.
Listed for 2018-up Jeep Wrangler JL non-Rubicon models with the Dana 35 200 mm rear and Dana 30 186 mm front. It is not for the Rubicon or Gladiator, and it is not for non-Rubicon JLs with the Dana 44 rear. Front and rear are always geared to the same ratio. Give us your year and VIN if you want us to confirm the axles before ordering, and browse related axle parts in our hard parts section.
The Dana 35 JL rear has its own setup numbers, and they differ from older Dana 35 axles. Revolution lists a 0.045 in starting pinion depth for the M200, pinion bearing preload of 22-35 in-lb with its own master kit (12-19 in-lb with a Dana Spicer kit), backlash of .006-.010 in, 135 ft-lb on the ring gear bolts and 50 ft-lb on the bearing caps. The Dana 30 M186 front starts at 0.050 in pinion depth with 15-20 in-lb preload, the same backlash range, and 70 ft-lb on ring gear bolts and caps. Verify the pattern with marking compound on both coast and drive sides. Replacement bearings for a future service are available in the JL Dana 35 200 mm rear master install kit.
Use a petroleum GL5 gear oil, follow the break-in cycles with no towing or off-road use early on, change the oil at 500 miles, and reprogram tire size and axle ratio when you are done.
| Brand | Revolution Gear & Axle |
| Part number | REV-JL-200/186-456 |
| Fits | Revolution Gear & Axle 2018+ Jeep Wrangler JL Non-Rubicon Dana 35 Rear 4.56 Ratio Gear Package |
| Vehicle fitment | Jeep Wrangler Jl Non-Rubicon (2018) |
| Type | Differential Install Kits |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Check the axle tag on the housing or the build sheet for your VIN. Most non-Rubicon JL Sport and Sahara models use the Dana 35 200 mm rear; some were built with the optional Dana 44 220 mm rear, which needs a different package.
4.56 is a common choice for 35-inch tires on a JL because it brings engine speed back near where a stock-tire Jeep runs. Larger tires or heavy towing may justify a steeper ratio.
A 4.56 ring and pinion for the Dana 35 200 mm rear, a 4.56 ring and pinion for the Dana 30 186 mm front, and a master install kit with Timken bearings for each axle.
Yes. With the front axle apart for gears, it is the ideal time to install a Dana 30 locker such as the Eaton ELocker4 for 3.73-and-up ratios, which suits a 4.56 gear set.
Use a name-brand petroleum GL5 gear oil for break-in, then change it at 500 miles to remove wear material from the new gears.
