Yukon Gear Front 4340 Chrome-Moly Replacement Axle Kit For 85-88 Ford / Dana 60 w/ 35 Splines
A broken front axle shaft or a snapped U-joint ear is the classic failure on a Ford F-250 or F-350 with a Dana 60 front that has been given bigger tires, a locker or a winch. Yukon kit YA W26014 replaces the complete front shaft set on a 1985-1988 Ford Dana 60 with 35-spline inner shafts: inner and outer axles for both sides, joined by 733X-series U-joints, all in 4340 chromoly steel.
On a solid front axle each side has two shafts. The inner shaft splines into the differential side gear and runs out through the housing tube to the knuckle. The outer shaft, or stub, passes through the spindle and drives the hub, and the U-joint between them lets the wheel steer while it is being driven. Ford's Dana 60 fronts of this era use kingpin knuckles, a driver-side differential drop and reverse-cut gears, and most were built with 35-spline inner shafts. The weak point under load is the shaft itself at the splines or the U-joint ears, especially at full lock with a locked differential.
Yukon makes these shafts from 4340 chromoly with cold-rolled splines and induction heat treating, which is a real step up from stock carbon steel when the truck runs oversize tires or a front locker.
Lock the hubs, put the truck in 4WD on stands and rotate each front wheel by hand while watching the U-joint and the axle shaft. A broken inner shaft lets the wheel spin freely with no drive to the carrier. Check U-joint play by gripping the yoke ears and trying to move them against each other. If the shaft broke inside the tube, pull the cover and check that no pieces are in the ring gear or carrier. A truck that broke a shaft because the locker wrapped up under load should be inspected inside before new shafts go in; a Dana 60 front master overhaul kit covers the bearings and seals if the carrier needs attention.
This kit is listed for the 1985-1988 Ford Dana 60 front axle with 35-spline inner shafts. Ford built most of its Dana 60 fronts with 35-spline inners, but some came with 30-spline shafts, so count the splines on your old inner shaft or confirm your carrier before ordering. A 30-spline carrier will not accept these shafts. If you are swapping carriers, a 35-spline Detroit Locker is built for the 1.50 in. shaft and matches this set. Axle housings were often moved between trucks, so if you are not sure what you have, send us the year, VIN and a spline count and we will check it. More Dana 60 parts are in our rebuild kits section.
Check that your locking hubs engage the new outer shafts fully before the first trip in 4WD.
| Brand | Yukon Gear & Axle |
| Part number | YA W26014 |
| Fits | Yukon Gear Front 4340 Chrome-Moly Replacement Axle Kit For 85-88 Ford / Dana 60 w/ 35 Splines |
| Type | Axles |
| 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.
Yes. YA W26014 includes the inner and outer axle shafts for both the driver and passenger sides, plus 733X-series U-joints and hardware.
No. These are 35-spline inner shafts and need a 35-spline side gear in the carrier. Most Ford Dana 60 fronts used 35-spline inners, but some were 30-spline, so count the splines on your old shaft first.
Yukon uses 4340 chromoly with cold-rolled splines and induction heat treating, which holds up far better to big tires, front lockers and winching than stock carbon steel shafts.
Inner axle tube seals, wheel bearings and hub seals, and the kingpin bushings if there is any play in the knuckles. Inspect the carrier if a shaft broke, since pieces can end up in the ring gear.
Use 75W-90 or 75W-140 gear oil as your owner's manual specifies, filled to the bottom of the fill plug. Add friction modifier only if your differential has a clutch-type limited slip that calls for it.
