ATP Parts ZA-500 Automatic Transmission Ring Gear

Reliable Automatic Transmission Ring Gear for GM Vehicles

The ATP Parts ZA-500 Automatic Transmission Ring Gear is engineered to meet the precise specifications required for a range of General Motors vehicles. Designed with exacting dimensions and tooth count, this transmission hard part ensures proper engagement and smooth operation in automatic transmissions for Buick, Chevrolet, GMC, and other GM makes.

• Inside Diameter: 13.268 inches
• Outside Diameter: 14.096 inches
• Thickness: 0.44 inches
• Tooth Quantity: 168 teeth
• Pitch Flywheels: 12/14
• No ring gear chamfer for exact fitment

Precision Specifications for Optimal Transmission Performance

The ZA-500 ring gear is manufactured to strict tolerances, featuring a 168-tooth count and a 13.268-inch inside diameter that matches factory requirements. Its 0.44-inch thickness and 14.096-inch outside diameter provide the necessary strength and durability for reliable torque transfer within the automatic transmission assembly. The 12/14 pitch flywheels ensure compatibility with specific GM transmission components, making this ring gear suitable for a wide range of models including the Chevrolet Silverado, GMC Sierra, Buick LeSabre, and Cadillac Escalade.

Compatible GM Makes and Models

This ATP Parts automatic transmission ring gear is compatible with numerous GM vehicles, including but not limited to:

• Buick LeSabre, Century, and Regal
• Cadillac Escalade and DeVille
• Chevrolet Silverado, Camaro, and Impala
• GMC Sierra, Yukon, and Jimmy
• Oldsmobile Cutlass and Delta 88
• Pontiac Firebird and Grand Prix

Common Transmission Issues Addressed

• Worn or damaged ring gear teeth causing transmission noise
• Improper gear engagement leading to slipping or delayed shifting
• Excessive backlash affecting transmission performance
• Ring gear wear resulting in vibration or harsh shifting
• Replacement during transmission rebuilds or upgrades

Installation Notes and Tips

Proper installation of the ZA-500 ring gear requires careful alignment with the transmission housing and flywheel. Ensure the mating surfaces are clean and free of debris before installation. Torque specifications should be followed according to the vehicle manufacturer’s service manual. It is recommended to inspect related transmission components such as the pinion gear and bearings during replacement to ensure overall system integrity.

Quality Assurance and Warranty

ATP Parts manufactures the ZA-500 ring gear to meet OEM standards for durability and fitment. Each part undergoes quality control inspections to verify dimensional accuracy and material integrity. This product is backed by ATP Parts’ limited warranty against defects in material and workmanship, providing confidence in its long-term performance within compatible GM automatic transmissions.