Description
2nd Gen 4Runner & 4Cyl Pickup 4.88 Gear | Toyota 8 Inch 4Cyl Pickup 1990-95 and Gen2 4Runner 4.88 Ratio Gear Package Revolution Gear
The 2nd Gen 4Runner & 4Cyl Pickup 4.88 Gear kit by Revolution Gear and Axle boosts torque, crawl control, and towing strength for 1990–1995 4-cylinder Toyota 4Runners and Pickups. Designed for 8″ rear and 7.5″ front axles, it includes front and rear 4.88 ring and pinion gear sets with Timken or Koyo master install kits. Heat-treated alloy steel construction ensures strength and quiet operation. This upgrade restores lost power from larger tires and improves trail and towing performance without modification.
Features of 2nd Gen 4Runner 4.88 Gear:
- Designed for 1990–1995 Toyota 4Runner and Pickup (4-cylinder only)
- Works with Toyota 8″ rear and 7.5″ front differentials
- Improves throttle response, crawl control, and towing torque
- Precision-machined gears for smooth and quiet performance
- Heat-treated alloy steel ensures strength and wear resistance
- Includes complete 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)
- Rear Master Install Kit (Timken or Koyo)
Specifications of 2nd Gen 4Runner 4.88 Gear:
- Gear Ratio: 4.88
- Rear Pinion Spline: 27 | Front Pinion Spline: 23
- Compatible Differentials: Toyota 8.0″ Rear | Toyota 7.5″ Front
- Material: OEM-grade heat-treated steel
- Warranty: 2-Year Limited Manufacturer Warranty
Fitment:
- 1990–1995 Toyota 4Runner (4-cylinder)
- 1990–1995 Toyota Pickup (4-cylinder, DLX, SR5)
FAQs:
- Will this 4.88 Gear fit my factory axles?
Yes, it’s made to fit Toyota 8″ rear and 7.5″ front differentials used in 4-cylinder models. - What benefits does the 4.88 gear ratio offer?
It improves crawl control, towing performance, and compensates for oversized tires. - Does this kit include both front and rear gears?
Absolutely. It comes complete with front and rear ring and pinion sets and both install kits. - Is professional installation required?
While experienced users can install, professional setup ensures perfect gear contact and long-term reliability. - Are Timken or Koyo bearings included?
Yes, the master install kits include top-tier bearings from Timken or Koyo.










