Description
1st Gen 4Runner 4.88 Gear | Toyota 8 Inch V6 Pickup 1986-89 and Gen1 4Runner 4.88 Ratio Gear Package Revolution Gear
The 1st Gen 4Runner 4.88 Gear kit from Revolution Gear and Axle enhances your off-road capability while restoring torque lost to larger tires. Designed for 1986–1989 Toyota V6 Pickups and 4Runners, this gear package improves low-speed drivability, throttle response, and crawl control. Whether you’re navigating rocky trails or towing a heavy load, this 4.88 ratio provides the performance boost you need.
Features of 1st Gen 4Runner 4.88 Gear:
- Specifically designed for 1986–1989 Toyota V6 4Runner and Pickup models
- Compatible with factory 7.5″ front and 8.0″ rear differentials
- Improves throttle feel, crawl ratio, and power at low RPMs
- Minimizes engine strain with oversized tires or extra load
- Manufactured from heat-treated, OEM-grade high-strength alloy steel
- Delivers quiet operation and smooth on-road/off-road performance
- Includes front and rear Timken or Koyo master install kits
What’s Included:
- Front 4.88 Ring & Pinion Gear Set – 7.5″ Toyota IFS
- Rear 4.88 Ring & Pinion Gear Set – 8.0″ Toyota V6
- Front Master Install Kit – Timken or Koyo Bearings
- Rear Master Install Kit – Timken or Koyo Bearings
Specifications of 1st Gen 4Runner 4.88 Gear:
- Gear Ratio: 4.88
- Pinion Splines: 23 (Front), 27 (Rear)
- Material: Heat-treated high-strength alloy steel
- Differential Compatibility: Toyota 7.5″ front IFS / 8.0″ rear
- Warranty: 2-Year Limited Manufacturer Warranty
Fitment:
- Toyota, 4Runner, 1984, 1989
- Toyota, Pickup, 1986, 1989
FAQs:
- Will this kit work with my V6?
Yes, this kit fits all 1986–1989 Toyota 4Runner and Pickup V6 models with factory axles. - Why should I upgrade to a 4.88 gear ratio?
This ratio helps recover lost torque from oversized tires and dramatically improves trail performance. - Are the install kits included in this package?
Absolutely. You get both front and rear master install kits with quality Timken or Koyo bearings. - Is the gear noise noticeable while driving?
Not at all. Precision machining guarantees quiet and consistent performance under all loads. - Do I need to recalibrate anything after installation?
Yes, recalibrating your speedometer is recommended after gear or tire size changes.
