Revolution Gear & Axle 86-89 Toyota 4Cyl Gen4 Pickup/Gen1 4Runner 8in Koyo 4.88 Ratio Gear Package

Revolution Gear & Axle is known for making solid drivetrain components, and this 4.88 ratio gear package for your 86-89 Toyota 4Cyl Pickup or Gen1 4Runner is a prime example. If you've upgraded to larger tires or are looking to improve your vehicle's performance off-road or when towing, changing your differential gear ratio is a smart move. A 4.88 ratio is a popular choice for these trucks and 4Runners when running 33-inch to 35-inch tires, as it helps bring your engine's RPMs back into a more efficient range, improving acceleration and reducing strain on the drivetrain.

This package includes a full set of Koyo bearings, which are well-regarded in the industry for their durability and smooth operation. Koyo is a trusted name, and their bearings are built to handle the demands of a re-geared differential. The 4.88 ratio means that for every 4.88 rotations of your driveshaft, the wheel will rotate once. This change is significant and will make a noticeable difference in how your vehicle feels, especially from a standstill or when climbing hills. Installing new gears is a job that requires precision and specialized tools, so it's often best left to a professional mechanic who understands the critical setup procedures like backlash and pinion depth. Getting these settings right is key to ensuring the longevity and quiet operation of your new gears.

When you're re-gearing your differential, it's important to have all the necessary installation components. This package is designed to provide the core pieces you need, including the ring and pinion gears along with the high-quality Koyo bearing kit. Make sure to consult your mechanic about any additional sealants, gear oil, or setup tools that might be required for your specific installation to ensure a smooth and successful build.