1972 GMC C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, Gas, Eng VIN JFACTORY OEM SERVICE PROCEDURE

GMC: 1972: C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, Gas, Eng VIN J

This is a LEMON manual, retrieved in 2025. This manual is identical to the manual for the following model variants, except for possibly the "Labor Times", "Fluids", and "Tire Fitment" pages:
  • C25/C2500 Pickup 5.0L Eng VIN F, Automatic Trans, Trans Mfr CD Powerglide
  • C25/C2500 Pickup 5.0L Eng VIN F, Automatic Trans, Trans Mfr CD THM350
  • C25/C2500 Pickup 5.0L Eng VIN F, Automatic Trans, Trans Mfr CD THM400
  • C25/C2500 Pickup 5.0L Eng VIN F, Not Available Trans
  • C25/C2500 Pickup 5.0L Eng VIN F, Standard Trans, Trans Mfr CD 435GA
  • C25/C2500 Pickup 5.0L Eng VIN F, Standard Trans, Trans Mfr CD 435GL
  • C25/C2500 Pickup 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM326
  • C25/C2500 Pickup 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM330
  • C25/C2500 Pickup 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM465
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD Powerglide, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD Powerglide, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD Powerglide, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM400, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM400, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM400, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Not Available Trans, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Not Available Trans, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Not Available Trans, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GA, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GA, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GA, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GL, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GL, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GL, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM326, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM326, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM326, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM330, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM330, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM330, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM465, Gas, Eng VIN E
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM465, Gas, Eng VIN H
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM465, Gas, Eng VIN J
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD Powerglide, LPG
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, LPG
  • C25/C2500 Pickup 5.7L Eng, Automatic Trans, Trans Mfr CD THM400, LPG
  • C25/C2500 Pickup 5.7L Eng, Not Available Trans, LPG
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GA, LPG
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD 435GL, LPG
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM326, LPG
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM330, LPG
  • C25/C2500 Pickup 5.7L Eng, Standard Trans, Trans Mfr CD SM465, LPG
  • C25/C2500 Pickup 5.7L Eng VIN E, Automatic Trans, Trans Mfr CD Powerglide
  • C25/C2500 Pickup 5.7L Eng VIN E, Automatic Trans, Trans Mfr CD THM350
  • C25/C2500 Pickup 5.7L Eng VIN E, Automatic Trans, Trans Mfr CD THM400
  • C25/C2500 Pickup 5.7L Eng VIN E, Not Available Trans
  • C25/C2500 Pickup 5.7L Eng VIN E, Standard Trans, Trans Mfr CD 435GA
  • C25/C2500 Pickup 5.7L Eng VIN E, Standard Trans, Trans Mfr CD 435GL
  • C25/C2500 Pickup 5.7L Eng VIN E, Standard Trans, Trans Mfr CD SM326
  • C25/C2500 Pickup 5.7L Eng VIN E, Standard Trans, Trans Mfr CD SM330
  • C25/C2500 Pickup 5.7L Eng VIN E, Standard Trans, Trans Mfr CD SM465
  • C25/C2500 Pickup 5.7L Eng VIN H, Automatic Trans, Trans Mfr CD Powerglide
  • C25/C2500 Pickup 5.7L Eng VIN H, Automatic Trans, Trans Mfr CD THM350
  • C25/C2500 Pickup 5.7L Eng VIN H, Automatic Trans, Trans Mfr CD THM400
  • C25/C2500 Pickup 5.7L Eng VIN H, Not Available Trans
  • C25/C2500 Pickup 5.7L Eng VIN H, Standard Trans, Trans Mfr CD 435GA
  • C25/C2500 Pickup 5.7L Eng VIN H, Standard Trans, Trans Mfr CD 435GL
  • C25/C2500 Pickup 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM326
  • C25/C2500 Pickup 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM330
  • C25/C2500 Pickup 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM465
  • C25/C2500 Pickup 5.7L Eng VIN J, Automatic Trans, Trans Mfr CD Powerglide
  • C25/C2500 Pickup 5.7L Eng VIN J, Automatic Trans, Trans Mfr CD THM350
  • C25/C2500 Pickup 5.7L Eng VIN J, Automatic Trans, Trans Mfr CD THM400
  • C25/C2500 Pickup 5.7L Eng VIN J, Not Available Trans
  • C25/C2500 Pickup 5.7L Eng VIN J, Standard Trans, Trans Mfr CD 435GA
  • C25/C2500 Pickup 5.7L Eng VIN J, Standard Trans, Trans Mfr CD 435GL
  • C25/C2500 Pickup 5.7L Eng VIN J, Standard Trans, Trans Mfr CD SM326
  • C25/C2500 Pickup 5.7L Eng VIN J, Standard Trans, Trans Mfr CD SM330
  • C25/C2500 Pickup 5.7L Eng VIN J, Standard Trans, Trans Mfr CD SM465
  • C25/C2500 Pickup 6.6L Eng VIN E, Automatic Trans, Trans Mfr CD Powerglide
  • C25/C2500 Pickup 6.6L Eng VIN E, Automatic Trans, Trans Mfr CD THM350
  • C25/C2500 Pickup 6.6L Eng VIN E, Automatic Trans, Trans Mfr CD THM400
  • C25/C2500 Pickup 6.6L Eng VIN E, Not Available Trans
  • C25/C2500 Pickup 6.6L Eng VIN E, Standard Trans, Trans Mfr CD 435GA
  • C25/C2500 Pickup 6.6L Eng VIN E, Standard Trans, Trans Mfr CD 435GL
  • C25/C2500 Pickup 6.6L Eng VIN E, Standard Trans, Trans Mfr CD SM326
  • C25/C2500 Pickup 6.6L Eng VIN E, Standard Trans, Trans Mfr CD SM330
  • C25/C2500 Pickup 6.6L Eng VIN E, Standard Trans, Trans Mfr CD SM465
  • C25/C2500 Pickup 6.6L Eng VIN U, Automatic Trans, Trans Mfr CD Powerglide
  • C25/C2500 Pickup 6.6L Eng VIN U, Automatic Trans, Trans Mfr CD THM350
  • C25/C2500 Pickup 6.6L Eng VIN U, Automatic Trans, Trans Mfr CD THM400
  • C25/C2500 Pickup 6.6L Eng VIN U, Not Available Trans
  • C25/C2500 Pickup 6.6L Eng VIN U, Standard Trans, Trans Mfr CD 435GA
  • C25/C2500 Pickup 6.6L Eng VIN U, Standard Trans, Trans Mfr CD 435GL
  • C25/C2500 Pickup 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM326
  • C25/C2500 Pickup 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM330
  • C25/C2500 Pickup 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM465
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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