Rochester Quadrajet Number Decoder: Carb ID and Date Code Lookup
Quadrajet number decoder for Rochester 4-barrel, 2GC and Monojet carbs: year, division, transmission and build date, checked against 1,069 numbers.
Classic Car Speedometer Bouncing or Noisy? How to Fix the Cable and Check the Gears
Classic car speedometer bouncing or chirping? It is almost always the cable. How to check routing, pull and inspect the…
GM Rear Axle Code Decoder: 10-Bolt and 12-Bolt ID
Decode GM rear axle codes for ratio, Positraction, plant and build date, with 601 sourced Chevelle and Nova codes and…
How to Replace a Mechanical Fuel Pump on a Small-Block Chevy (and Keep the Pushrod From Falling)
How to replace a mechanical fuel pump on a small-block Chevy: test pressure and volume at the carb first, hold…
How to Replace Upper Control Arm Bushings on a Chevelle or Other GM A-Body
How to replace upper control arm bushings on a GM A-body: worn bushing symptoms, rubber vs poly vs Delrin, shim…
How to Test a Fuel Sending Unit on a Classic Car (Gas Gauge Stuck on Empty or Full)
How to test a fuel sending unit on a classic car with a multimeter: GM 0-90 ohm vs Ford and…
Ballast Resistor & Ignition Coil Calculator (Specs Table)
Free ballast resistor calculator plus sourced GM, Ford and Mopar resistor and coil ohm specs, PerTronix and MSD rules, and…
How to Replace Rear Drum Brake Shoes on a Classic GM A-Body
Here is how to replace rear drum brake shoes on a Chevelle or any 1964-1972 GM A-body, from primary and…
How to Test a Ballast Resistor on a Classic Muscle Car With a Multimeter
How to test a ballast resistor on a classic muscle car with a multimeter: ohms checks, coil voltage in RUN…
How to Test the Alternator and Grounds on a Classic Muscle Car With a Multimeter
Multimeter tests that separate a bad alternator from bad grounds and cables on a classic muscle car: resting voltage, charging…