Revolution Gear & Axle 2018+ Jeep JL/Gladiator JT Dana 44 Rear Ring & Pinion Master Install Kit
The Revolution Gear & Axle 35-2072 is the ring and pinion master install kit for the Dana 44 rear axle (220 mm ring gear) under 2018-and-newer Jeep Wrangler JL and Gladiator JT models. It is the kit you buy with new gears when a JL or JT on 35 or 37 in. tires has gone soft off the line and keeps hunting for gears on the highway, and it is the kit you buy when the rear axle starts to whine and you want every bearing replaced in one pass. Front and rear get regeared together on a Jeep, so most buyers pair it with the matching front kit.
The JL and JT rear Dana 44 is the newer Dana design with a 220 mm ring gear, different from the Dana 44 used under the TJ and JK; Revolution notes the TJ, JK and JL/JT Dana 44s all take different gear sets, and that is true of their bearing kits as well. In the rear axle the pinion runs on two tapered bearings with a crush sleeve setting preload, and the carrier rides on two bearings with shims for backlash and preload. Revolution lists the 35-2072 with Timken pinion and carrier bearings, pinion shims, carrier shims, a crush sleeve, a pinion seal, ring gear bolts and cover gasket or silicone. Axle seals are not included. With those parts the new ring and pinion goes in on fresh bearings and a clean setup, not on bearings that already wore into the factory gears.
First confirm you have the Dana 44 rear and not the Dana 35. Revolution's model guide notes that Sport and Sahara JLs came with either an upgraded Dana 35 or a Dana 44 in the rear, while Rubicon JLs and all Gladiator JTs have the Dana 44 front and rear. Read the axle tag or the gear ratio and axle codes on the build sheet. A non-Rubicon JL with the Dana 35 needs the Dana 35 200 mm rear kit instead. For noise, our whine diagnosis guide separates gear whine from bearing noise, and the regear after bigger tires guide helps pick a ratio.
Revolution lists the 35-2072 for the 2018-and-up Dana 44 rear axle in the Jeep Wrangler JL and Gladiator JT, 220 mm. That covers Rubicon JLs, JLs built with the optional Dana 44 rear, and Gladiators. It does not fit the front axle, the JK or TJ Dana 44, or the Dana 35 rear. If you are not sure which rear you have, send us your year and VIN, or browse our rebuild kits.
Gear setup on the JL rear follows the usual sequence: set pinion depth with the shims, tighten the pinion nut in steps until rotating preload is in spec, then set backlash and carrier preload with the carrier shims and confirm the pattern on drive and coast. Our backlash and pinion depth guide shows what a good pattern looks like. Rubicon carriers have an electric locker, so unplug and protect the locker wiring before pulling the carrier; our JL locker actuator guide covers that system. For the gears themselves, we carry the Yukon 220 mm rear set in 4.88 and the Revolution 2-cut rear set in 4.56; the 35-2071 front kit handles the Dana 44 front. Fill with GL-5 gear oil and follow a break-in: short drives with cool-down stops, no towing or trail use for the first 500 miles, then change the oil.
| Brand | Revolution Gear & Axle |
| Part number | 35-2072 |
| Fits | Revolution Gear & Axle 2018+ Jeep JL/Gladiator JT Dana 44 Rear Ring & Pinion Master Install Kit |
| Vehicle fitment | Jeep Jl/Gladiator Jt (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.
No. The 35-2072 is for the 220 mm Dana 44 rear only. The JL and JT front Dana 44 is a smaller, reverse cut axle with its own kit, Revolution 35-2071.
Only if your Sport was built with the optional Dana 44 rear. Many Sport and Sahara JLs have the Dana 35 rear, which needs the 35-2073 kit. Check the axle tag or send us your VIN before ordering.
No. This is the install kit: Timken pinion and carrier bearings, pinion and carrier shims, crush sleeve, pinion seal, ring gear bolts and cover gasket or silicone. Buy the gear set in your ratio separately.
No. Revolution lists axle seals as not included. If the shafts come out for the regear, inspect the axle bearings and seals and replace them if they show wear or leaks.
It depends on tire size, transmission and how you drive. Many 35 in. builds land around 4.56 and 37 in. builds around 4.88, but check a ratio calculator against your tire height and highway rpm, and regear the front and rear to the same ratio.
