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  See more parts for Chevrolet C/K 10
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Yukon Gear & Axle Yukon Grizzly Locker for Dana 60, 4.56 & Up, 30 Spline - YGLD60-4-30

If you're serious about off-roading, the Yukon Grizzly Locker is a game changer. I’ve put this bad boy through its paces on some gnarly trails and can tell you—it’s built to last. This isn’t just another locker; it’s a mechanical positive-locking differential that thrives in rock crawling and off-road racing. It’s got a rugged design that ensures both tires get 100% power, but it still lets you turn smoothly without fighting against it. That’s a big deal when you’re navigating tight spots.

What sets the Grizzly apart? For starters, its patented design features a unique gear tooth layout that’s tougher than what you’ll find on most competitors. The inner clutch teeth have a larger radius, which gives it up to 350% greater strength compared to those back-cut designs that often fail under pressure. I’ve seen lockers break under shock-loading, but the Grizzly’s beefy teeth resist that kind of failure like a champ. It’s a serious piece of engineering that can handle the roughest conditions without flinching.

Now, let's talk specs. This locker fits Dana Spicer 60 axles with 30 spline shafts and is designed for gear ratios of 4.56 and up. The internals are made from 8620 steel, which adds an extra layer of durability. Plus, it’s assembled right here in the USA, so you know you’re getting quality craftsmanship.

  • Axle Shaft Spline Quantity: 30
  • Cover Bolt Quantity: 10
  • Material: Steel
  • Type: Locking

Worried about fitment? The Grizzly Locker is compatible with a wide range of vehicles, including classics like the Chevrolet C/K series (from '64 to '86), various Dodge models (like the Ram and Charger), and even older Ford trucks. If you’ve got a Jeep Wagoneer from '63 to '76, you’re in luck too. It’s a versatile piece that can really upgrade your ride.

In short, if you’re looking to take your off-roading experience to the next level, the Yukon Grizzly Locker is worth every penny. It’s tough, reliable, and ready to tackle whatever you throw at it. Trust me, once you’ve got this installed, you’ll wonder how you ever managed without it.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1967-1972
 Chevrolet C/K 10
1964-1972
 Chevrolet C/K 20
1971-1974, 1977-1986
 Chevrolet C/K 30
1979-1987
 Chevrolet G30
1987-1988
 Chevrolet R/V 30
1964-1972
 Chevrolet Suburban
1978-1980
 Dodge B100
1978-1980
 Dodge B200
1981-1987
 Dodge B250
1978-1980
 Dodge B300
1981-1987
 Dodge B350
1966-1969
 Dodge Charger
1975-1980
 Dodge D200
1964-1967
 Dodge D200 Series
1981-1993
 Dodge D250
1975-1980
 Dodge D300
1968-1974
 Dodge D300 Pickup
1964-1967
 Dodge D300 Series
1981-1993
 Dodge D350
1968-1969
 Dodge Dart
1994-2002
 Dodge Ram 2500
1994-1999
 Dodge Ram 3500
1993
 Dodge Ramcharger
1975-1980
 Dodge W200
1968-1974
 Dodge W200 Pickup
1964-1967
 Dodge W200 Series
1981-1993
 Dodge W250
1975-1980
 Dodge W300
1968-1974
 Dodge W300 Pickup
1964-1967
 Dodge W300 Series
1981-1993
 Dodge W350
1991-2002
 Ford E-250
1991-1998, 2000-2001
 Ford E-350
1965-1971
 Ford F-100
1954-1986
 Ford F-250
1975-1978
 Ford F-350
1967-1972
 GMC C/K 15
1967-1972
 GMC C/K 25
1973-1974, 1977-1978
 GMC C/K 35
1979-1986
 GMC C/K 3500
1987
 GMC V3500
1963-1976
 Jeep Wagoneer
1968-1969
 Plymouth Barracuda
Yukon's mission is to build quality parts that exceed your expectations. We achieve this through state-of-the-art product design and an in-house engineering team. Our parts are then produced by leaders in OEM manufacturing and endure rigorous testing.
Yukon Gear & Axle ("Yukon") warrants the original retail purchaser that all Yukon products will be free from defects in materials and workmanship for the periods shown herein. Yukon makes no other warranty of any kind, express or implied. All other warranties, including but not limited to an implied warranty of merchantability or fitness for a particular purpose, are excluded. This warranty is offered provided that the Yukon product has been installed and maintained in accordance with Yukon instructions, and that it has not been subject to modification, accident, abnormal use or misuse. At Yukon's discretion, this warranty may be voided if installation of Yukon product(s) occurs on vehicles with tires that exceed Yukon Maximum Recommended Tire Size.

Upon notification of a warranty claim, Yukon shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product, replace it, or refund the purchase price.

This warranty does not cover, and Yukon shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the Yukon product)*. In addition, this warranty does not cover, and Yukon shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Yukon Gear & Axle products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-Yukon component.

This agreement offers you specific legal rights. You may also have other rights which vary from state to state.

YUKON WARRANTY BY PRODUCT

Spool
  • Length:As long as original purchaser owns vehicle in which Spool is originally installed
  • Notes:It is normal for Spools to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for Spool to function properly without premature wear.
Super Joint
  • Length:As long as original purchaser owns vehicle in which Super Joint is originally installed
  • Notes:Warranty coverage is for breakage of cross section or caps only. Failure by wear or galling is not covered.
YP - Series Products (other than Spool and Super Joint)
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturers defects.
Front Axle (1541H)
  • Length:Ten (10) Years
  • Notes:Covers parts for ten years against manufacturing defects.
Rear Axle (1541H)
  • Length:Ten (10) Years
  • Notes:Covers parts for ten years against manufacturing defects.
Rear Axle 4340 (YA W)
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Front Axle (Series YA W)
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Ring & Pinion Gear Set
  • Length:One (1) Year
  • Notes:Warrantied against manufacturing defects for one (1) year.
Positraction Differential
  • Length:One (1) Year
  • Notes:Exclusions apply, does not cover premature clutch wear or abuse. It is normal for Positraction differentials to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for differential to function properly without premature wear. Limited slip additive or appropriate friction modifier must be used with oil to reduce Positraction chatter.
Zip Locker (YZL)
  • Length:Six (6) Years
  • Notes:All Zip Lockers come with a six (6) year warranty against manufacturer defect, including any collaterally damaged parts and associated labor, up to $2,000*, for the first two (2) years. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
Grizzly Locker (YGL)
  • Length:One (1) Year
  • Notes:Covers the replacement of the unit and any collaterally damaged parts and associated labor, up to $2,000. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
Yokes
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturing defects.
Carriers (YC)
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturing defects.
Tools (YT)
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturing defects.
Install Kits
  • Length:One (1) Year
  • Notes:Includes BK, MK, PK, and YK. Covers parts for one year against manufacturing defects.
Spider Gear Kits (YPK)
  • Length:One (1) Year
  • Notes:One year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials.
YHC Drive Flanges
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Yukon Hardcore Locking Hubs
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations
Driveshafts
  • Length:One (1) Year
  • Notes:Warrantied against manufacturing defects for one (1) year. Longer warranty is available through purchase of a Y.E.S. plan.

Installation Instructions

Click to view the Installation Instructions here

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