⚙️ Gear Oil – Maximum Protection for Gears, Differentials & Transmissions

Keep your drivetrain running smoothly under pressure with high-performance gear oil from tirehardware.com. Designed to handle the extreme loads and high-friction environments found in differentials, manual transmissions, transfer cases, and other gear-driven systems, our products provide superior protection, reduced wear, and consistent performance—no matter the terrain or task.

🛠️ Why Gear Oil Matters

It plays a critical role in lubricating and cooling metal-on-metal components subjected to high torque and shearing forces. The right gear oil minimizes friction, prevents gear scoring and pitting, and keeps internal components clean and protected—even in high-temperature or heavy-duty use.

🔍 What You’ll Find in This Category:

• GL-4 & GL-5 Gear Oils
  Choose the correct grade for your manual transmission or differential.
• Synthetic & Mineral-Based Formulations
  Options for OEM replacement, performance upgrades, and extreme duty use.
• Limited Slip Compatible Gear Oils
  Formulated with or without friction modifiers for LSD differentials.
• Multi-Viscosity & Conventional Grades
  Including 75W-90, 75W-140, 80W-90, 85W-140, and more.
• Trusted Brands
  Royal Purple, Lucas Oil, Red Line, Valvoline, and other top-tier options.

🚗 Suitable Applications:

• Passenger cars & trucks
• Off-road and towing vehicles
• High-performance street builds
• Race cars
• Fleet & commercial vehicles
• Agriculture and heavy equipment

🧰 Symptoms of Needing a Gear Oil Change:

• Whining or howling from the rear end
• Difficulty shifting (manual transmissions)
• Vibration or grinding noises under load
• Leaking from differential or axle seals

Protect your investment—browse our selection to find the perfect match for your drivetrain and driving demands.