Yukon Gear High Performance Gear Set For Toyota V6 In A 4.88 Ratio

Yukon Gear High Performance Ring and Pinion Gear Set for Toyota V6 in 4.88 Ratio

The YG TV6-488K from Yukon Gear is a premium ring and pinion set engineered for Toyota V6 differential applications, delivering a 4.88 ratio that dramatically improves low-speed torque for off-road and towing performance. This YG TV6-488K kit is designed for the Toyota 8 inch V6 rear differential and is popular among 4Runner, FJ Cruiser, Tacoma, and Pickup owners who have upgraded to larger tires. Yukon Gear builds the YG TV6-488K from high-grade steel with advanced heat treatment and precision tooth geometry for extended service life and quieter operation.

Features and Benefits

• High-grade steel construction with advanced heat treatment for superior durability
• 4.88 ratio restores optimal acceleration and fuel economy after larger tire installation
• Precision-engineered tooth profile reduces friction and operating temperatures
• Designed for Toyota 8 inch V6 rear differential platforms
• Compatible with Toyota OEM and aftermarket locker differential assemblies
• Includes pinion nut for complete installation convenience
• Meets or exceeds OEM tolerances for minimal noise during operation
• Eligible for Yukon Gear Y.E.S. extended service protection plan

Vehicle Fitment

Product Specifications

What Is Included

• One ring gear
• One pinion gear
• Pinion nut
• Installation instruction sheet

Frequently Asked Questions

What differential does YG TV6-488K fit?
The YG TV6-488K is designed for the Toyota 8 inch V6 rear differential used in 4Runner, FJ Cruiser, Tacoma, Pickup, and Lexus GX470 applications with V6 engines.

Is an install kit needed with YG TV6-488K?
Yes. A differential installation kit with bearings, shims, and seals is required for a complete rebuild and must be purchased separately from this ring and pinion set.

What tire size pairs well with the 4.88 ratio?
A 4.88 ratio is ideal for Toyota trucks and SUVs running 33 to 37 inch tires, restoring low-end performance close to factory specifications with a lower axle ratio.

Does the Magnuson-Moss Warranty Act protect my vehicle warranty?
Under the Magnuson-Moss Warranty Act, a dealer or manufacturer cannot void your warranty simply because you installed a quality aftermarket part. The burden of proof lies with the dealer to show the part caused the failure.

Can I use YG TV6-488K with a locking differential?
Yes. This gear set is compatible with the Toyota factory E-locker, ARB Air Locker, and other locker systems designed for the Toyota 8 inch V6 differential.

What is the spline count for the Toyota V6 differential?
The Toyota 8 inch V6 differential uses a 29-spline pinion shaft. Confirm your application uses the V6 diff and not the 4-cylinder differential before ordering.

Does YG TV6-488K come with a warranty?
Yes. Yukon Gear offers the Y.E.S. extended service plan for ring and pinion sets, covering defects in materials and workmanship with a no-questions-asked approach.

How long will a properly installed ring and pinion last?
With correct installation, proper gear break-in, and regular differential fluid changes, a quality ring and pinion set can last the life of the vehicle under normal use conditions.

Installation Instructions

1. Drain differential fluid and remove the differential cover and axle shafts.
2. Remove bearing caps and lift out the carrier assembly carefully.
3. Press the old ring gear off the carrier and clean the mating surface.
4. Install the new ring gear from YG TV6-488K and torque bolts in a crossing pattern.
5. Remove the old pinion, bearings, and spacers from the differential housing.
6. Press new pinion bearings onto the shaft and into the housing.
7. Set pinion depth using appropriate shims and a dial indicator setup.
8. Set pinion bearing preload to specification using an inch-pound torque wrench.
9. Install the carrier and set backlash to the manufacturer-specified range.
10. Check gear contact pattern using gear marking compound and adjust as needed.
11. Reinstall differential cover and fill with 75W-90 or 75W-140 gear oil per Toyota specification.
12. Break in gears gradually over the first 500 miles, avoiding heavy loads or aggressive driving.

Prop 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.