Description
1st Gen 4Runner 4.56 Gear | Toyota 8 Inch 4Cyl Pickup 1986-89 and Gen1 4Runner 4.56 Ratio Gear Package Revolution Gear
The 1st Gen 4Runner 4.56 Gear by Revolution Gear and Axle restores power and drivability to your 1984–1989 Toyota 4Runner. Ideal for rigs running oversized tires, this gear set improves throttle response, torque, and low-speed control without sacrificing smooth highway performance.
Features of 1st Gen 4Runner 4.56 Gear:
- Fits 1984–1989 Toyota 4Runner and 1986–1989 Toyota Pickup (4-cylinder models)
- Optimized for Toyota 7.5″ front and 8.0″ rear differentials
- Enhances crawl ratio, towing power, and off-road traction
- Made from heat-treated OEM-grade alloy steel for strength and longevity
- Quiet operation—ideal for daily driving and trail use
- Includes Timken or Koyo bearing master install kits
What’s Included:
- Front 4.56 Ring & Pinion Gear Set – Toyota 7.5″
- Rear 4.56 Ring & Pinion Gear Set – Toyota 8.0″
- Front Master Install Kit (Timken or Koyo)
- Rear Master Install Kit (Timken or Koyo)
Specifications of 1st Gen 4Runner 4.56 Gear:
- Gear Ratio: 4.56
- Front Pinion Spline: 23 | Rear Pinion Spline: 27
- Material: Heat-treated high-strength steel
- Axle Compatibility: Toyota 7.5″ IFS front / 8.0″ rear
- Warranty: 2-Year Limited Manufacturer Warranty
Fitment:
- 1984–1989 Toyota 4Runner (DLX, SR5 – 4-cylinder only)
- 1986–1989 Toyota Pickup (Base, DLX, SR5, SR5 Turbo – 4-cylinder)
FAQs:
- Will this fit my differential?
Yes, it fits Toyota 7.5″ front and 8″ rear axles for 4-cylinder models. - Is this a good upgrade for oversized tires?
Absolutely. The 4.56 gear restores lost torque and helps maintain control when off-roading or towing. - Are both front and rear install kits included?
Yes, you get full master install kits with Timken or Koyo bearings. - Will this gear setup be loud?
No, precision-cut gears are engineered for smooth and quiet performance. - Do I need to recalibrate the speedometer?
Yes, recalibration is recommended after gear or tire size changes.
