Description

1st Gen 4Runner 5.29 Gear | Toyota 8 Inch 4Cyl Pickup 1986-89 and Gen1 4Runner 5.29 Ratio Gear Package Revolution Gear

The 1st Gen 4Runner 5.29 Gear package by Revolution Gear and Axle is built for performance. If your 1984–1989 4-cylinder 4Runner or Pickup runs larger tires or frequently tackles rough trails, this gear upgrade is essential. It restores lost torque, enhances throttle response, and improves overall drivability both on and off the road.

Features of 1st Gen 4Runner 5.29 Gear:

• Compatible with 1984–1989 Toyota 4Runner and 1986–1989 Pickup (4-cylinder)
• Designed for Toyota 8″ rear and 7.5″ front IFS differentials
• Increases torque, throttle response, and crawl control for oversized tires
• Heat-treated, high-strength OEM-grade alloy steel for long-term use
• Quiet and smooth gear operation even under demanding conditions
• Includes master install kits with Timken or Koyo bearings for both axles

What’s In The Box:

• Front 5.29 Ring and Pinion Gear Set – 7.5″
• Rear 5.29 Ring and Pinion Gear Set – 8.0″
• Front Master Install Kit (Timken or Koyo)
• Rear Master Install Kit (Timken or Koyo)

Specifications of 1st Gen 4Runner 5.29 Gear:

• Gear Ratio: 5.29
• Pinion Spline Count: 23 (Front), 27 (Rear)
• Material: Heat-treated alloy steel
• Differential Fitment: Toyota 7.5″ IFS front and 8.0″ rear
• Warranty: 2-Year Limited Manufacturer Warranty

Fitment:

• 1984–1989 Toyota 4Runner (DLX, SR5 – 4-cylinder)
• 1986–1989 Toyota Pickup (Base, DLX, SR5, Turbo – 4-cylinder)

FAQs:

• Will this fit my 1st Gen 4Runner with a 4-cylinder engine?
  Yes, it fits 1984–1989 models equipped with 7.5″ front and 8.0″ rear axles.
• Why is a 5.29 gear ratio better for off-road builds?
  It boosts low-speed control, restores torque lost from big tires, and supports better trail handling.
• Is everything I need included in this kit?
  Definitely. It includes front and rear gear sets plus full master install kits with top-quality bearings.
• Is it noisy during highway driving?
  Not at all. These gears are cut precisely for smooth and quiet operation on any surface.
• Should I recalibrate after installing this gear?
  Yes, recalibrating your speedometer is recommended, especially after tire or gear changes.