Yukon Grizzly Locker for Dana 60, 4.10 & down, 40 spline
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Yukon Gear and Axle
Yukon Grizzly Locker for Dana 60 Axles, 40-Spline, 4.10 Ratio and Down
The Yukon Grizzly Locker is a heavy-duty, automatic mechanical locking differential designed to deliver maximum traction for Dana 60 axle applications equipped with 40-spline shafts and gear ratios of 4.10 and numerically lower. Built for extreme strength and reliability, the Grizzly Locker automatically locks under acceleration and unlocks while coasting, providing consistent traction without the need for electronics, switches, or air systems.
Engineered for severe-duty and extreme off-road use, this locker is manufactured from high-strength materials capable of handling massive torque loads, oversized tires, and harsh terrain. Its simple, automatic operation makes it an ideal solution for rock crawlers, competition rigs, and heavy-duty off-road vehicles where durability and traction are critical.
Key Features:
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Automatic mechanical locking differential
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Designed for Dana 60 axles with 40-spline shafts
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Compatible with gear ratios of 4.10 and numerically lower
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Automatically locks under power and unlocks while coasting
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No wiring, switches, or air systems required
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Built for extreme strength and severe-duty applications
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Ideal for rock crawling, competition, and extreme off-road use
Vehicle Fitment:
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Dana 60 axle applications with 40-spline shafts
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Gear ratios 4.10 and numerically lower
SKU: YGLD60-3-40
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