Description
Toyota 8 Inch 4Cyl Pickup 1986-89 and Gen1 4Runner 4.88 Ratio Gear Package Revolution Gear
The 4th Gen Pickup 4.88 Gear package by Revolution Gear and Axle is your ultimate drivetrain upgrade for enhanced torque, towing performance, and crawl control. Designed for 1986–1989 Toyota 4-cylinder Pickups and 1984–1989 4Runners, this kit is perfect for restoring power lost due to oversized tires or added load. With precision-fit ring and pinion gears, the 4.88 ratio transforms trail response and highway efficiency.
Features of 4th Gen Pickup 4.88 Gear:
- Engineered for 1986–1989 Toyota 4Cyl Pickup and 1984–1989 Toyota 4Runner
- Includes Toyota 8.0″ rear and 7.5″ front differential gear sets
- Enhances torque delivery and low-speed throttle control
- Reduces engine stress with larger tires or towing loads
- Manufactured from heat-treated, OEM-grade high-strength alloy steel
- Provides quiet operation with precision-machined gear teeth
- Includes master install kits with Timken or Koyo bearings
What’s Included:
- Front 4.88 Ring and Pinion Gear Set – Toyota 7.5″
- Rear 4.88 Ring and Pinion Gear Set – Toyota 8.0″
- Front Master Install Kit (Timken or Koyo bearings)
- Rear Master Install Kit (Timken or Koyo bearings)
Specifications of 4th Gen Pickup 4.88 Gear:
- Gear Ratio: 4.88
- Pinion Splines: 23 (Front), 27 (Rear)
- Differential Type: 7.5″ IFS Front / 8.0″ Rear
- Material: High-strength, heat-treated alloy steel
- Warranty: 2-Year Limited Manufacturer Warranty
Fitment:
- Toyota, 4Runner, 1984, 1989
- Toyota, Pickup, 1986, 1989
FAQs:
- Will this 4th Gen Pickup & 4Runner 4.88 Gear kit fit my Toyota?
Yes, it’s built for 1986–1989 Toyota Pickups and 1984–1989 4Runners with 7.5″ front and 8.0″ rear axles. - Why choose a 4.88 gear ratio?
The 4.88 ratio improves crawl control, increases torque output, and restores drivability with larger tires. - Is this a complete install package?
Absolutely. You’ll get front and rear gear sets plus premium master install kits with high-quality bearings. - Will this increase noise?
No. These gears are precision cut for smooth and quiet performance under all conditions. - Should I recalibrate my speedometer?
Yes. It’s recommended when changing your gear ratio or upgrading tire size.










