Yukon Gear Grizzly Locker For Dana 60 / 4.10 & Down / 35 Spline
A full-float Dana 60 under an old Chevy C20 or K20, a Dodge B-series van, or the front axle of a 1977-1986 K30 can still spin a single tire and leave you stuck, no matter how strong the housing is. The Yukon Grizzly Locker YGLD60-3-35 swaps the open carrier for a mechanical automatic locker built for Dana 60 axles with 35-spline shafts and ring gears of 4.10 and numerically lower, or thick deep gears made for that carrier. Nothing to wire, plumb or switch: it stays locked under power and lets the outside wheel overrun in a turn.
There are no spider gears doing the work. Two driven clutch rings with face teeth sit between the axle side gears and the case. While both wheels are being driven, the rings stay meshed and both 35-spline shafts turn together, so the tire with traction gets the full push. When the outside wheel has to travel farther in a corner, its ring ratchets out of mesh and freewheels, then drops back in once speeds match. Yukon says the inner clutch teeth use a larger root radius, which it rates at up to 350 percent stronger than back-cut designs, and the internals are 8620 steel, assembled in the USA. Yukon also notes this unit is not compatible with C-clip axles, which fits the full-float and front Dana 60s it is listed for.
Check the axle tag or the 60 casting, then pull a shaft and count 35 splines; many Dodge and Ford Dana 60s use 30 or 32. Next, confirm the ratio: this case is for 4.10 and lower, or thick deep sets such as 4.88 thick. Gears from the 4.56-and-up series need the other carrier. The Dana 60 gear guide and the carrier break explainer show how to check. If you are torn between an automatic and a selectable locker, read ELocker vs Grizzly.
Yukon's application list for YGLD60-3-35 includes 1964-1972 Chevy C20 and 1967-1972 C10/K10 pickups and Suburbans with full-float Dana 60s, 1968-1972 G10 and 1979-1987 G30 vans with the 35-spline Dana 60 rear, 1977-1986 K30 and 1987-1988 V30 standard-rotation fronts, and Dodge B100 through B300 and B250/B2500 vans with full-float Dana 60 rears. Axles have been swapped and regeared for decades, so trust what is in the housing, not the title; send us your year and VIN or axle tag if unsure. Other ways to lock the same axle are the Detroit Locker 35-spline 4.10-down and the selectable ELocker4 14022-010. Browse more in hard parts.
| Brand | Yukon Gear & Axle |
| Part number | YGLD60-3-35 |
| Fits | Yukon Gear Grizzly Locker For Dana 60 / 4.10 & Down / 35 Spline |
| 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.
Only if those are thick gears made for the 4.10-and-down carrier. Standard 4.56-and-up Dana 60 gears need the other carrier series, so check what your ring gear is cut for before ordering.
No. This part number is for 35-spline axle shafts only. Count the splines on a pulled shaft; many Dodge and Ford Dana 60s use 30 or 32.
No. Yukon states this locker is not compatible with C-clip axles. It is listed for full-float rears and Dana 60 fronts.
Yes, Yukon lists 1977-1986 K30 and 1987-1988 V30 standard-rotation fronts. With an automatic locker up front, steering gets heavy with the hubs locked, so run the hubs unlocked on pavement.
No. The Grizzly has no clutch packs. Use the GL-5 gear oil your axle calls for.
A Dana 60 master overhaul kit for bearings and seals, new ring gear bolts, gear oil, and new gears if you are changing ratio. A tough cover helps on rocky trails.
