Specializing in competition-grade transmission builds in Santee, Performance Transmissions operates from 8501 Ablette Road with a focus on race-car, hot-rod, and heavy-duty truck drivetrains. The shop's motorsports-oriented rebuild and custom-conversion work produces transmissions for drag, road-course, and off-road racing platforms, output that feeds into the post-build paint-correction and ceramic-coating services at Dali Detailing on Woodside Avenue before track day or show debut. Services extend beyond competition work to include standard automatic and manual transmission diagnostics, ATF changes, transmission programming, and street-vehicle rebuilds. The facility stocks friction plates, bands, servos, and performance torque converters for both domestic and import gearboxes. The shop installs its race-ready assemblies into competition vehicles sourced through Alba Racing on Prospect Avenue, linking the Ablette Road transmission bench to Santee's motorsports supply corridor. Custom-valvebody calibrations, manual-shift reprogramming, and converter stall-speed matching allow the shop to build transmissions rated for engine outputs exceeding 1,000 horsepower in purpose-built quarter-mile and roll-race applications.