Pioneer Cables FRA-323 Automatic Transmission Flexplate

Pioneer Cables FRA-323 Flexplate Overview

The Pioneer Cables FRA-323 is an automatic transmission flexplate built to restore OEM-level performance in the drivetrain. It is made from high-grade steel, welded for consistent strength, and precision balanced to factory specifications for smooth operation.

Compatible With 1988-1990 Buick LeSabre, 1988-1990 Buick Reatta, 1988-1990 Buick Riviera, 1988-1990 Oldsmobile 98, 1988-1990 Oldsmobile Delta 88, 1988-1990 Oldsmobile Toronado, 1988-1990 Pontiac Bonneville, and 1989 Pontiac Firebird.

• Outside diameter: 11.938 in. for proper transmission and starter engagement
• 142 teeth for the listed GM applications
• Mounting hole diameter: 9.5 mm
• Pitch flywheels: 12 to 14
• Precision-balanced to factory specs for consistent rotational performance
• Automated welding process for repeatable strength and build quality

Detailed Product Description

Built as a direct replacement automatic transmission flexplate, the Pioneer Cables FRA-323 is engineered to match original dimensions and restore the connection between the engine and torque converter. Its 11.938-inch outside diameter, 142-tooth ring gear, and factory-style balance help maintain correct starter mesh and drivetrain alignment. This part number FRA-323 is a practical choice for owners servicing GM rear-wheel-drive applications that require a 142-tooth flexplate.

This part cross-references Federal Parts 4427 for the same application.

Common Problems This Flexplate Can Address

• Cracked or fatigued flexplate material
• Starter engagement issues caused by worn ring gear teeth
• Vibration from an out-of-balance flexplate
• Noise from damaged or distorted flexplate surfaces
• Drivetrain fitment problems from incorrect dimensions

Installation Notes and Tips

Verify tooth count, outside diameter, and mounting hole diameter before installation. Confirm the transmission and engine combination matches the listed application, and inspect the starter, torque converter, and crankshaft flange for wear or damage before assembly. Proper torque procedures and final runout checks help ensure correct operation after installation.

Quality Assurance

Pioneer Cables builds this flexplate from high-grade steel and uses automated welding plus precision balancing to support consistent fit and factory-style performance. The FRA-323 is not SFI approved and does not include an SFI certification sticker.