Pioneer Cables FRA-156 Automatic Transmission Flexplate

Automatic Transmission Flexplate for GM 148-Tooth Applications

The Pioneer Cables FRA-156 is an automatic transmission flexplate built to restore OEM-level fit and function in select GM applications. It is made from high-grade steel, welded with an automated process for consistent strength, and precision balanced to factory specifications.

Compatible With 1985-1993 Chevrolet S10, 1991-1993 GMC Sonoma, 1985-1990 GMC S15, 1985-1988 Chevrolet S10 Blazer, and 1985-1988 GMC S15 Jimmy applications that use a 148-tooth flexplate.

• Part number: FRA-156
• Outside diameter: 12.375 in. for the specified application
• 148 teeth for matching starter engagement requirements
• 12 pitch flywheel specification
• Mounting hole diameter: 9.75 in.
• Precision-balanced to factory specs
• High-grade steel construction with automated welding
• Cross-reference: Standard Ignition V501

Fitment and Application Details

This flexplate is built for automatic transmission service in GM compact truck and SUV platforms that require a 148-tooth, 12.4-inch-class flexplate. It is a direct replacement choice for Chevrolet S10 and S10 Blazer, plus GMC S15, S15 Jimmy, and Sonoma models listed in the fitment data. The FRA-156 also cross-references Global Parts Distributors LLC 4343 for the same application.

Common Problems This Part Addresses

• Cracked or warped flexplate surfaces
• Starter engagement noise caused by worn teeth
• Vibration from an out-of-balance flexplate
• Drivetrain noise related to flexplate fatigue
• Transmission-to-engine connection issues from damaged mounting points

Installation Notes and Tips

Verify tooth count, outside diameter, and mounting dimensions before installation. Confirm the starter gear and transmission application match the vehicle’s original specifications, especially on 1985-1993 Chevrolet S10 and related GMC models. Inspect the crankshaft flange, starter, and fasteners for wear or damage before assembly.

Quality Assurance

Pioneer Cables manufactures this flexplate from high-grade steel and balances it to factory specifications to support consistent replacement performance. The automated welding process adds repeatable strength and uniformity across the part.