Eaton ELocker4 Differential Dana 60 Performance 35 Spline 4.10 & Down Ratio
A Dana 60 is about as stout as a light-truck axle gets, but with an open carrier it still quits the moment one tire unloads on a ledge, in a washout or on a slick boat ramp. The Eaton ELocker4 14022-010 turns a 35-spline Dana 60 with 4.10 or numerically lower gears into an axle you can lock from the driver seat. It is the unit people look for when they are building a one-ton front axle for a crawler, a hunting rig or a plow truck and do not want an automatic locker fighting the steering every day.
With the switch off, the 14022-010 behaves like an ordinary open differential, so the truck corners, tows and wears tires normally. Press the dash switch and a 12 volt electromagnet pulls the locking mechanism in, tying both axle shafts together so each wheel gets the same torque. Eaton calls this a direct acting ELocker4 and quotes an engagement time of about 0.14 seconds. Inside are four net-forged pinion gears rather than two, which matters in an axle that may see a big diesel or 40 inch tires. Eaton specs this case for 35-spline shafts with a 1.5 inch diameter and a 9.75 inch ring gear, and the unit weighs about 47 pounds.
Carrier and pinion bearing wear are the usual Dana 60 complaints, so if the axle howls or the pinion has play, plan the bearing work at the same time. Our Dana 60 front axle problems guide walks through what to check.
Dana 60 carriers are split by gear ratio. Ratios of 4.10 and numerically lower bolt to this case. A standard-thickness 4.56 or deeper ring gear needs the ELocker4 14023-010 for 4.56 and up. The catch is thick ring gears: Eaton notes the 4.56-up unit is for non-thick gears only, and deep thick sets such as the Yukon Dana 60 5.13 thick gear set are machined to mount on the 4.10-and-down carrier. Read the ring gear tag or count driveshaft turns per tire turn, then count the axle shaft splines; 30-spline shafts will not fit this case. The carrier break explainer covers this in more detail.
Eaton's application data for 14022-010 lists 1977-1987 General Motors one-ton trucks, vans and cab and chassis with the Dana 60 HD front axle in the 4.10-and-down series, plus 1966-1972 Chrysler, Dodge and Plymouth passenger cars with the Dana 60 HD. Revolution Gear catalogs it as a front Dana 60 unit. In practice it suits any 35-spline Dana 60 housing geared 4.10 or lower, including swapped and built axles, but many Dana 60s have been rebuilt with different shafts or gears over the years. Check the axle tag, ratio and spline count, or send us your year and VIN before ordering. More axle parts are on our hard parts page.
| Brand | Eaton |
| Part number | 14022-010 |
| Fits | Eaton ELocker4 Differential Dana 60 Performance 35 Spline 4.10 & Down Ratio |
| Type | Differentials |
| 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.
Revolution Gear lists it as a front Dana 60 unit, and Eaton's data includes 1977-1987 GM one-ton front Dana 60 HD axles. The carrier itself suits 35-spline Dana 60 housings with 4.10 and lower gears; confirm your axle tag and splines before ordering.
Thick deep-ratio Dana 60 ring gears are made to bolt to the 4.10-and-down carrier, so this unit is the usual choice. Eaton notes the 4.56-and-up 14023-010 is for non-thick ring gears only.
No. This case is machined for 35-spline shafts with a 1.5 inch diameter. A 30-spline Dana 60 needs a different ELocker or upgraded shafts.
Yes. Eaton includes its locking rocker switch and wiring harness. Carrier bearings are not included.
Eaton recommends a quality petroleum GL-5 gear oil; synthetic can be used if the axle manufacturer allows it. Friction modifier is not required for a locker.
