Description
Our rebuilding process includes complete transmission disassembly, thorough cleaning of internal components, and inspection of the transmission case, oil pump, valve body, clutch drums, planetary gear assemblies, input and output shafts, and other critical components for wear or damage.
The transmission receives new friction clutches, sealing components, gaskets, and a transmission filter. Steel plates, bushings, bearings, and other internal components are inspected and replaced as needed. The valve body, shift solenoids, pressure-control components, and torque-converter operation are inspected for proper functionality. Internal clearances and endplay are verified during assembly to help ensure reliable operation.
Vehicle Compatibility
Fits select 1993–2013 Chevrolet C1500, K1500, and Silverado 1500 models originally equipped with the 4L60E 4-speed automatic transmission (RPO M30).
Fitment must be confirmed using your VIN before purchase. Compatibility varies by model year, engine size, 2WD or 4WD configuration, electrical connectors, bellhousing, and internal transmission design. The 4L60E is not automatically interchangeable with the 4L65E, 4L70E, 4L80E, or 6L80.
Contact Sincere Gear with your VIN to confirm the correct transmission configuration and included components before ordering.
Warranty Coverage
Standard Warranty: 1 Year / 12,000 Miles, whichever occurs first.
Optional Extended Warranty: 3 Years / 36,000 Miles, whichever occurs first, available for an additional $500.
See the full Sincere Gear warranty terms and installation agreement for coverage, exclusions, and claim requirements.
