Yukon 4.30 Front & Rear Ring & Pinion Install Kit, Toyota 8/8IFS (With factory locker), 3.91/up Case
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Warranty Information
Vendor warranty summary
Yukon Warranty
At a glance: Term by product: 1 year on gears and kits, 10 years on 1541H axles, limited lifetime on 4340 axles and Hardcore parts, 6 years on Zip Lockers
This is Yukon's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: November 4, 2026.
Coverage by product line
| Yukon product | Coverage |
|---|---|
| Ring & pinion gear sets | 1 year, manufacturing defects |
| Install kits, carriers, yokes, tools | 1 year, manufacturing defects |
| Spider gear kits (YPK) | 1 year; limited-slip clutch wear excluded |
| Positraction differentials | 1 year; premature clutch wear and abuse excluded |
| 1541H front and rear axles | 10 years, manufacturing defects |
| 4340 chromoly front and rear axles (YA W) | Limited lifetime for original owner of the vehicle, includes breakage |
| Spools and Super Joints | Limited lifetime for original owner of the vehicle |
| Hardcore diff covers, locking hubs, drive flanges | Limited lifetime, defects and breakage |
| Zip Locker (YZL) | 6 years; collateral parts and labor up to 2,000 dollars in first 2 years |
| Grizzly Locker (YGL) | 1 year; collateral parts and labor up to 2,000 dollars |
| Other YP-series parts | 1 year |
What's covered
- Defects in materials and workmanship for the original retail purchaser
- Axle breakage on 4340 chromoly axles and breakage on Hardcore parts
- Collateral damage and labor up to 2,000 dollars on Zip Lockers (first 2 years) and Grizzly Lockers, after inspection and with receipts
- Repair or replacement at Yukon's option once a defect is verified
What's not covered
- Modification, accident, abnormal use, misuse, or improper installation or maintenance
- Use with tires larger than Yukon's maximum recommended size, at Yukon's discretion
- Labor, towing or road service, loss of vehicle use, lost revenue and damage to other parts, except the locker collateral coverage
- Wear and galling, and premature clutch wear in limited-slip units
- Axle damage caused by failure of a non-Yukon component
- Promises made by dealers or third parties beyond the written terms
How to make a Yukon warranty claim
- Contact NVMOS with your order number, the part, the vehicle and photos of the failure
- We open the claim with Yukon / RANDYS Worldwide, who investigate after notification
- Keep the failed parts; locker collateral claims require inspection of damaged parts and receipts for parts and labor
- If Yukon verifies a defect, it repairs or replaces the part; lifetime items get a no-questions-asked replacement on the first return
Yukon contact: Yukon Gear & Axle, 10411 Airport Road, Suite 200, Everett, WA 98204. Phone 1-800-347-1188. Support through the RANDYS Worldwide contact page. · Warranty page
Bought it from NVMOS? Start with us.
Yukon runs claims through RANDYS Worldwide and wants proof of purchase, inspection of the failed parts and, for lockers, labor receipts. Call NVMOS first so we can send your order record with the claim and keep track of it with the distributor while your truck is down. Have your order number and a few photos of the issue ready, then call or text us at (920) 249-7744 or send us a message.
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See all Yukon products, lead times and FAQs →
Disclaimer: The information on this page describes Yukon's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Sources: Yukon warranty (official) and Yukon Our History (official) and Yukon About Us (official) and Yukon Advantage (official). Last updated on nvmos.com: November 4, 2026. See our return policy for NVMOS's own terms.
About the brand
Yukon Gear & Axle is a drivetrain specialist out of Everett, Washington, and part of the RANDYS Worldwide family of brands. At NVMOS that means ring and pinion sets, install and overhaul kits, axle shafts, carriers, lockers, yokes and differential covers for the axles under Toyota, Jeep, Ford, GM and Ram trucks.
Based in: Everett, Washington · Made in: Engineered in Everett, WA; built by outside OEM manufacturers (countries not published). Grizzly Lockers are assembled in the USA. · Lead time: In-stock parts ship in 1-3 business days; parts stocked at the manufacturer take about 1-2 weeks
Shop all 2326 YukonWarrantyAll brands
Warranty terms are set by Yukon, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Yukon 4.30 Front & Rear Ring & Pinion Install Kit, Toyota 8/8IFS (With factory locker), 3.91/up Case
This package puts a 4.30 ring and pinion set in both axles of a Toyota with the 8/8IFS differential (with factory locker), and adds the installation kits, all under one part number. It fits Toyota FJ Cruiser (2007-2009), Toyota Tacoma (1995-2015) and Toyota Tundra (2000-2006). It suits a full re-gear of a front-and-rear setup.
| Spec | Detail |
|---|---|
| Fitment | Toyota FJ Cruiser (2007-2009), Toyota Tacoma (1995-2015) and Toyota Tundra (2000-2006) |
| Differential | Toyota 8/8IFS |
| Ratio | 4.30 |
| Locker / transmission | With factory locker |
| Front case | 3.91/up |
| Includes | Front and rear ring and pinion sets with installation kits |
| Weight | 39 lb |
Fitment depends on your differential size, locker setup and front carrier case, so match them to your truck before ordering. Not sure it fits your build? Call or text us at (920) 249-7744 with your year, trim and setup and we will confirm it.
Which differential is this for?
It is for Toyota 8/8IFS differentials (with factory locker); 3.91/up front case.
What is included?
Front and rear ring and pinion gear sets with installation kits, in one part number.
Which vehicles does it fit?
It fits Toyota FJ Cruiser (2007-2009), Toyota Tacoma (1995-2015) and Toyota Tundra (2000-2006).
What is the warranty?
See our Yukon warranty page for the current terms.
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Specifications
Yukon 4.30 Front & Rear Ring & Pinion Install Kit, Toyota 8/8IFS (With factory locker), 3.91/up Case FAQs
Which differential is this for?
It is for Toyota 8/8IFS differentials (with factory locker); 3.91/up front case.
What is included?
Front and rear ring and pinion gear sets with installation kits, in one part number.
Which vehicles does it fit?
It fits Toyota FJ Cruiser (2007-2009), Toyota Tacoma (1995-2015) and Toyota Tundra (2000-2006).
What is the warranty?
See our Yukon warranty page for the current terms.
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