Motive Gear TAC529 Differential Ring and Pinion Set Toyota 8.4" 5.29 Ratio

The Motive Gear TAC529 is a precision-engineered differential ring and pinion gear set designed specifically for Toyota 8.4" rear differentials with a 5.29 gear ratio. Built for drivers who demand more from their drivetrain whether on pavement, trails, or the job site, this gear set delivers enhanced low-end torque, improved traction, and long-term reliability.

Key Features:

• Toyota 8.4" Differential Fitment – Engineered specifically for Toyota 8.4" rear differentials with a dropout-style differential cover design
• 5.29 Gear Ratio – Increases low-end torque output, ideal for off-road use, towing, and lifted vehicle applications
• 8620 Steel Construction – Ring gear forged from high-strength 8620 alloy steel for superior wear resistance and durability under heavy loads
• 37-Tooth Ring Gear / 7-Tooth Pinion – Precision-cut tooth geometry for smooth, quiet engagement and consistent torque transfer
• 12-Bolt Ring Gear – 30-spline pinion shaft with 1.57" pinion shaft diameter for a secure, precise fit
• 8.125" Ring Gear Outside Diameter – Standard rotation design for smooth and efficient torque transfer
• Meets or Exceeds OEM Specifications – Engineered to factory tolerances with no compromises in fitment or performance
• 1-Year / 50,000-Mile Warranty – Backed by Motive Gear's quality assurance program for lasting peace of mind

Motive Gear subjects every ring and pinion set to rigorous in-house quality control testing, checking for strength, tolerance, and hardness before packaging. The TAC529 is an excellent choice for gear ratio swaps, differential rebuilds, or performance upgrades requiring a numerically higher ratio for demanding driving conditions.