Pioneer Cables FRA-158 Automatic Transmission Flexplate

Automatic Transmission Flexplate for OEM-Style Replacement

Pioneer Cables FRA-158 is an automatic transmission flexplate built to restore factory-style performance in compatible Chevrolet, GMC, and Pontiac applications. It is made from high-grade steel, welded with an automated process for consistent strength, and precision balanced to factory specifications.

With a 12.375-inch outside diameter, 148 teeth, and a 10.0 mm mounting hole diameter, this flexplate is specified for select 1982-1987 Chevrolet Camaro, Chevrolet S10, Chevrolet S10 Blazer, GMC S15, GMC S15 Jimmy, and Pontiac Firebird models.

Key Features

• Part number FRA-158 automatic transmission flexplate
• 148-tooth design with 12.375-inch outside diameter
• Built from high-grade steel for OE-style replacement use
• Automated welding process for consistent joint strength
• Precision balanced to factory specifications
• Pitch flywheels: 12 to 14
• Mounting hole diameter: 10.0 mm
• Compatible with select Chevrolet Camaro and Chevrolet S10 applications

Detailed Description

Pioneer Cables FRA-158 is engineered as a direct replacement automatic transmission flexplate for vehicles that require a 148-tooth, 12.375-inch plate. The stamped steel construction and factory-style balance help maintain proper starter engagement and rotational consistency in the drivetrain. This part cross-references Gates 33638 for the same application.

Compatible With 1982-1987 Chevrolet Camaro, N/A; 1982-1987 Chevrolet S10, N/A; 1983-1987 Chevrolet S10 Blazer, N/A; 1982-1987 GMC S15, N/A; 1983-1987 GMC S15 Jimmy, N/A; and 1982-1987 Pontiac Firebird, N/A. The FRA-158 also cross-references SKF 99472.

Common Issues This Part Addresses

• Cracked or warped flexplate surfaces
• Starter ring gear engagement problems
• Excessive drivetrain vibration from imbalance
• Noise caused by a damaged or worn flexplate
• Replacement needs after transmission or engine service

Installation Notes and Tips

Verify tooth count, outside diameter, and mounting hole diameter before installation. Confirm the transmission and engine combination matches the 12 to 14 pitch flywheel specification and compare the existing flexplate to the FRA-158 before assembly. Proper torque procedures and inspection of the starter engagement pattern are recommended during installation.

Quality Assurance

Pioneer Cables manufactures this flexplate to original dimensions and balances it to factory specs for consistent fit and operation. The automated welding process is used to improve strength and repeatability across production.