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📍 Firewall, driver side, mounted to sheet metal near master cylinder
⚠️ Non-programmable solid-state trigger module for points-less ignition; no diagnostics capability; simple on/off failure mode; tests with multimeter only
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1971 Chevrolet Chevelle SS 454 454ci V8 LS5 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.