Revolution Gear & Axle Dana 44 Rear Axle 4.10 Ratio Ring & Pinion Set
A 4.10 ratio is the classic answer for a Dana 44 truck or Jeep that went from stock tires to 31 or 33 in. rubber and now feels lazy pulling away, drops out of overdrive on every highway grade, or works the transmission hard with a trailer behind it. The Revolution Gear and Axle D44-410 is a new 4.10 ring and pinion for the standard-rotation Dana 44, the axle used as the rear on 1997-2006 Wrangler TJ and 1986-1993 Cherokee XJ models and front or rear on many classic Broncos, K5 Blazers, Ford F-series, Dodge Ram and full-size Jeep trucks. It also replaces an original 4.10 set that has started to whine after years of service.
The pinion gear, driven by the driveshaft, turns the 8.5 in. ring gear bolted to the differential carrier. With 4.10 gears the pinion makes 4.10 turns for every turn of the axle shafts, so the engine sits higher in its rpm range at any road speed and the axle delivers more torque to the tires. A quick way to pick a ratio: multiply your old ratio by the new tire height divided by the old tire height. A truck with 3.55 gears on 29 in. tires that moves to 33s works out to about 4.04, so 4.10 puts it back where the factory had it.
Revolution lists this family as standard rotation, 26-spline pinion, 10-bolt cover, 8620 steel and made in Korea, with a carrier break at 3.73/3.92. That break matters: 4.10 sits on the deep side, so the set needs the 3.92-and-up carrier. A Dana 44 that came from the factory with 3.73 or numerically lower gears has the other carrier and will not accept this set without a Dana 44 open carrier for 3.92 and up. If you want to keep that carrier or the locker already in it, the thick-gear 4.10 set is machined to fit the 3.73-and-down carrier.
Noise first: the differential whine diagnosis guide separates gear noise from carrier bearing or pinion bearing noise, which a new gear set alone will not fix. Then confirm the ratio from the axle tag or by counting ring gear and pinion teeth, and check which carrier you have using the carrier break guide. Finally check rotation: high-pinion Dana 44 fronts run reverse rotation and need a reverse set, not this one.
Revolution applies its standard-rotation Dana 44 sets to the TJ and XJ rears above, the 1986-1992 Comanche, CJ5, CJ6, CJ7, Scrambler, Wagoneer, Grand Wagoneer, J10 and Jeepster, the 1971-1977 Bronco, 1975-1978 F-150 and 1959-1977 F-250, the 1969-1980 Blazer and K5, 1967-1968 C10, 1994-2001 Ram 1500, 1994-2002 Ram 2500 and Ramcharger, plus the Dana 44 rears in 1984-1994 Camaro and 1980-1982 Corvette. Decades-old axles are often swapped, so trust the tag and the carrier over the vehicle. This part number is the non-dual-drilled version; Revolution's spec sheet for the family lists 10 x 3/8 in. ring gear bolts, so measure your carrier's bolt holes, or send us your year and VIN and we will check it. More gear and setup parts are under hard parts.
Revolution's Dana 44 setup chart gives a 0.042 in. starting pinion shim, 14-19 in-lb pinion bearing preload, .006-.010 in. backlash, 60 ft-lb on the bearing caps and 55 ft-lb on 3/8 in. ring gear bolts. Treat the shim as a starting point and finish by reading the contact pattern on both sides of the teeth. New pinion and carrier bearings, a crush sleeve and a pinion seal belong in every regear; the Yukon Dana 44 master overhaul kit covers them, and a carrier installation kit handles the carrier side if you are reusing the pinion bearings on a fresh install. Revolution's break-in advice is a non-synthetic GL-5 gear oil (80W-90 or 85W-140) for the first 500 miles, with an oil change after that; add friction modifier if the axle has a clutch-type limited slip. Avoid towing until the gears are broken in, and recalibrate the speedometer for the new ratio. The backlash and pinion depth guide walks through the measurements.
| Brand | Revolution Gear & Axle |
| Part number | D44-410 |
| Fits | Revolution Gear & Axle Dana 44 Rear Axle 4.10 Ratio Ring & Pinion Set |
| Type | Ring & Pinions |
| 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.
Not on that carrier. Revolution lists the carrier break at 3.73/3.92, and 4.10 needs the 3.92-and-up carrier. Swap to a 3.92-and-up carrier or locker, or order the thick-gear 4.10 set built for the 3.73-and-down carrier.
Multiply your current ratio by new tire height divided by old tire height. For example 3.55 x 33 / 29 is about 4.04, so 4.10 suits a move from 29 to 33 in. tires. Larger jumps usually call for 4.56 or deeper.
It is standard rotation, which covers rear Dana 44s and low-pinion standard-rotation fronts. High-pinion fronts are reverse rotation and need a reverse-rotation set.
No, this is the ring and pinion only. Plan on a Dana 44 master overhaul or install kit with pinion and carrier bearings, crush sleeve, pinion seal, shims and ring gear bolts.
Revolution recommends a non-synthetic GL-5 80W-90 or 85W-140 for break-in, no towing early on, and an oil change at about 500 miles. Add friction modifier for a clutch-type limited slip.
