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  See more parts for Chevrolet C/K 30
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Yukon Gear & Axle Dura Grip Positraction Differential Dana 70 4.10 & Down 35 Spline - YDGD70-3-35

If you're looking for a differential that can handle whatever you throw at it, the Yukon Dura Grip is the way to go. This isn't just any limited slip differential; it's built for those who really want to push their vehicles to the limit. Whether you're climbing rocky trails or cruising down the highway, this baby gives you smooth yet aggressive traction, which is exactly what you need when the terrain gets tricky.

One of the standout features of the Dura Grip is its durability. Made with a high-strength nodular case and forged 4320 chromoly spider gears, this thing is built to last. And if you ever need to do a rebuild, no worries’it's fully rebuildable. That means you can keep it running strong for years without having to shell out for a whole new unit.

Now, let’s talk about those composite clutches. They really enhance the positraction performance, giving you that extra edge when you need it most. With a 4-pin design and gears cut for maximum strength, you can trust that this differential will hold up no matter what terrain you find yourself on.

In terms of fitment, the Dura Grip is compatible with various vehicles, including the Chevrolet C/K series from 1970 to 2000 and a range of Dodge trucks from the '60s to the '90s. It fits Dana Spicer 70 axles with 35 spline shafts and works with gear ratios of 4.10 and down, which is pretty versatile for most setups.

Here's a quick rundown of what you get:

  • Designed for 4.10 gear ratios and down, also fits thick gears.
  • Assembled in the USA, so you know it’s quality.
  • Backed by extensive product testing to ensure reliability.
  • Heat-treated steel construction for added toughness.

So, if your vehicle demands performance, durability, and strength, the Yukon Dura Grip is definitely worth considering. It's not just a part; it's a game-changer for anyone serious about their ride.

Proposition 65

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

Vehicle
1970-1986
 Chevrolet C/K 30
1988-2000
 Chevrolet C/K 3500
1984-1995
 Chevrolet G30
1987-1999
 Chevrolet P30
1987-1988
 Chevrolet R/V 30
1978-1980
 Dodge B300
1981-1987
 Dodge B350
1981-1993
 Dodge D250
1975-1980
 Dodge D300
1968-1974
 Dodge D300 Pickup
1964-1967
 Dodge D300 Series
1981-1993
 Dodge D350
1994-2002
 Dodge Ram 2500
1994-2002
 Dodge Ram 3500
1975-1980
 Dodge W200
1968-1974
 Dodge W200 Pickup
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
1991-1998, 2000-2012
 Ford E-350
1970-1997, 1999-2015
 Ford F-350
1974-1978
 GMC C/K 35
1979-1986, 1988-2000
 GMC C/K 3500
1983-1991
 GMC G3500
1988
 GMC R3500
1987-1988
 GMC V3500
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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