Yukon Gear 1995-2015 Toyota Tacoma Grizzly Locker 8.4in Rear 30-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
The Yukon Grizzly Locker YGLT100-30 is a mechanical locking differential designed for Toyota 8.4″ rear axles with 30-spline shafts (commonly used in T100, Tacoma, and early Tundra models). It allows full torque to both wheels under load, yet still unlocks on turns for drivability—ideal for dual-purpose street and off-road use.
Key Specifications
- Axle Fitment: 8.4″ rear Toyota differential
- Spline Count: 30 spline
- Operating Mode: Mechanical locker — locks solid under load, unlocks when coasting in turns
- Internal Construction: Uses 8620 steel internals with a patented design to reduce common locker failure modes
- Warranty Options: Eligible for Yukon YES (Yukon Extended Service) plan
Features & Benefits
- 100% Torque Distribution — Sends torque to both wheels equally when engaged, improving traction in low-traction conditions
- Automatic Disengagement on Turns — Unlocks when sideloaded to allow smoother cornering and reduce driveline stress
- Proven Durable Design — Internal parts crafted with strength in mind to survive demanding conditions
- Street & Off-Road Friendly — Designed for daily drivability while offering aggressive locking capability when you need it
Fitment & Compatibility
- Fits Toyota 8.4″ rear differential housings using 30-spline axle shafts
- Common applications include Toyota T100 (1993-1998), early Tacoma, early Tundra, and other vehicles using the 8.4" 30-spline rear
- Works with factory or aftermarket ring & pinion sets (verify proper backlash and preload)
Notes & Considerations
- Proper install torque, shimming, and break-in procedures are essential for long life.
- Because it locks both wheels under load, expect slightly increased tire wear in tight turns or aggressive driving.
- Check for compatibility with brake gear, gear ratio, and axle housing before purchase.
Questions? We’re Here to Help.
Have questions about differential upgrades or drivetrain parts for your truck? Our team at FASS Motorsports is here to assist:
- Phone: 636-429-7020
- Email: info@fassmotorsports.com
