Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
GMC: 1973
1973 GMCSECTION 1973
- G15/G1500 Van
- G25/G2500 Van
- G35/G3500 Van
- Jimmy
- 4.1L Eng VIN Q, Automatic Trans, Trans Mfr CD THM350
- 4.1L Eng VIN Q, Automatic Trans, Trans Mfr CD THM400
- 4.1L Eng VIN Q, Not Available Trans
- 4.1L Eng VIN Q, Standard Trans, Trans Mfr CD SM326
- 4.1L Eng VIN Q, Standard Trans, Trans Mfr CD SM330
- 4.1L Eng VIN Q, Standard Trans, Trans Mfr CD SM465
- 4.8L Eng VIN T, Eng CD L25, Automatic Trans, Trans Mfr CD THM350
- 4.8L Eng VIN T, Eng CD L25, Automatic Trans, Trans Mfr CD THM400
- 4.8L Eng VIN T, Eng CD L25, Not Available Trans
- 4.8L Eng VIN T, Eng CD L25, Standard Trans, Trans Mfr CD SM326
- 4.8L Eng VIN T, Eng CD L25, Standard Trans, Trans Mfr CD SM330
- 4.8L Eng VIN T, Eng CD L25, Standard Trans, Trans Mfr CD SM465
- 4.8L Eng VIN T, _NA_, Automatic Trans, Trans Mfr CD THM350
- 4.8L Eng VIN T, _NA_, Automatic Trans, Trans Mfr CD THM400
- 4.8L Eng VIN T, _NA_, Not Available Trans
- 4.8L Eng VIN T, _NA_, Standard Trans, Trans Mfr CD SM326
- 4.8L Eng VIN T, _NA_, Standard Trans, Trans Mfr CD SM330
- 4.8L Eng VIN T, _NA_, Standard Trans, Trans Mfr CD SM465
- 5.0L Eng VIN X, Automatic Trans, Trans Mfr CD THM350
- 5.0L Eng VIN X, Automatic Trans, Trans Mfr CD THM400
- 5.0L Eng VIN X, Not Available Trans
- 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM326
- 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM330
- 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM465
- 5.7L Eng VIN Y, Automatic Trans, Trans Mfr CD THM350
- 5.7L Eng VIN Y, Automatic Trans, Trans Mfr CD THM400
- 5.7L Eng VIN Y, Not Available Trans
- 5.7L Eng VIN Y, Standard Trans, Trans Mfr CD SM326
- 5.7L Eng VIN Y, Standard Trans, Trans Mfr CD SM330
- 5.7L Eng VIN Y, Standard Trans, Trans Mfr CD SM465
- 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, Eng VIN Y
- 5.7L Eng, Automatic Trans, Trans Mfr CD THM350, _NA_
- 5.7L Eng, Automatic Trans, Trans Mfr CD THM400, Eng VIN Y
- 5.7L Eng, Automatic Trans, Trans Mfr CD THM400, _NA_
- 5.7L Eng, Not Available Trans, Eng VIN Y
- 5.7L Eng, Not Available Trans, _NA_
- 5.7L Eng, Standard Trans, Trans Mfr CD SM326, Eng VIN Y
- 5.7L Eng, Standard Trans, Trans Mfr CD SM326, _NA_
- 5.7L Eng, Standard Trans, Trans Mfr CD SM330, Eng VIN Y
- 5.7L Eng, Standard Trans, Trans Mfr CD SM330, _NA_
- 5.7L Eng, Standard Trans, Trans Mfr CD SM465, Eng VIN Y
- 5.7L Eng, Standard Trans, Trans Mfr CD SM465, _NA_
- 7.4L Eng VIN Z, Automatic Trans, Trans Mfr CD THM350
- 7.4L Eng VIN Z, Automatic Trans, Trans Mfr CD THM400
- 7.4L Eng VIN Z, Not Available Trans
- 7.4L Eng VIN Z, Standard Trans, Trans Mfr CD SM326
- 7.4L Eng VIN Z, Standard Trans, Trans Mfr CD SM330
- 7.4L Eng VIN Z, Standard Trans, Trans Mfr CD SM465
- P15/P1500 Van
- P25/P2500 Van
- P35/P3500 Van
- Sprint
- Base, 4.1L Eng VIN D, Automatic Trans, Trans Mfr CD THM350
- Base, 4.1L Eng VIN D, Automatic Trans, Trans Mfr CD THM400
- Base, 4.1L Eng VIN D, Not Available Trans
- Base, 4.1L Eng VIN D, Standard Trans, Trans Mfr CD SM326
- Base, 4.1L Eng VIN D, Standard Trans, Trans Mfr CD SM327
- Base, 4.1L Eng VIN D, Standard Trans, Trans Mfr CD SM330
- Base, 4.1L Eng VIN D, Standard Trans, Trans Mfr CD SM428
- Base, 4.1L Eng VIN D, Standard Trans, Trans Mfr CD SM430
- Base, 5.0L Eng VIN F, Automatic Trans, Trans Mfr CD THM350
- Base, 5.0L Eng VIN F, Automatic Trans, Trans Mfr CD THM400
- Base, 5.0L Eng VIN F, Not Available Trans
- Base, 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM326
- Base, 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM327
- Base, 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM330
- Base, 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM428
- Base, 5.0L Eng VIN F, Standard Trans, Trans Mfr CD SM430
- Base, 5.0L Eng VIN X, Automatic Trans, Trans Mfr CD THM350
- Base, 5.0L Eng VIN X, Automatic Trans, Trans Mfr CD THM400
- Base, 5.0L Eng VIN X, Not Available Trans
- Base, 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM326
- Base, 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM327
- Base, 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM330
- Base, 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM428
- Base, 5.0L Eng VIN X, Standard Trans, Trans Mfr CD SM430
- Base, 5.7L Eng VIN H, Automatic Trans, Trans Mfr CD THM350
- Base, 5.7L Eng VIN H, Automatic Trans, Trans Mfr CD THM400
- Base, 5.7L Eng VIN H, Not Available Trans
- Base, 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM326
- Base, 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM327
- Base, 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM330
- Base, 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM428
- Base, 5.7L Eng VIN H, Standard Trans, Trans Mfr CD SM430
- Base, 5.7L Eng VIN K, Automatic Trans, Trans Mfr CD THM350
- Base, 5.7L Eng VIN K, Automatic Trans, Trans Mfr CD THM400
- Base, 5.7L Eng VIN K, Not Available Trans
- Base, 5.7L Eng VIN K, Standard Trans, Trans Mfr CD SM326
- Base, 5.7L Eng VIN K, Standard Trans, Trans Mfr CD SM327
- Base, 5.7L Eng VIN K, Standard Trans, Trans Mfr CD SM330
- Base, 5.7L Eng VIN K, Standard Trans, Trans Mfr CD SM428
- Base, 5.7L Eng VIN K, Standard Trans, Trans Mfr CD SM430
- Base, 5.7L Eng VIN L, Automatic Trans, Trans Mfr CD THM350
- Base, 5.7L Eng VIN L, Automatic Trans, Trans Mfr CD THM400
- Base, 5.7L Eng VIN L, Not Available Trans
- Base, 5.7L Eng VIN L, Standard Trans, Trans Mfr CD SM326
- Base, 5.7L Eng VIN L, Standard Trans, Trans Mfr CD SM327
- Base, 5.7L Eng VIN L, Standard Trans, Trans Mfr CD SM330
- Base, 5.7L Eng VIN L, Standard Trans, Trans Mfr CD SM428
- Base, 5.7L Eng VIN L, Standard Trans, Trans Mfr CD SM430
- Base, 6.6L Eng VIN R, Automatic Trans, Trans Mfr CD THM350
- Base, 6.6L Eng VIN R, Automatic Trans, Trans Mfr CD THM400
- Base, 6.6L Eng VIN R, Not Available Trans
- Base, 6.6L Eng VIN R, Standard Trans, Trans Mfr CD SM326
- Base, 6.6L Eng VIN R, Standard Trans, Trans Mfr CD SM327
- Base, 6.6L Eng VIN R, Standard Trans, Trans Mfr CD SM330
- Base, 6.6L Eng VIN R, Standard Trans, Trans Mfr CD SM428
- Base, 6.6L Eng VIN R, Standard Trans, Trans Mfr CD SM430
- Base, 6.6L Eng VIN U, Automatic Trans, Trans Mfr CD THM350
- Base, 6.6L Eng VIN U, Automatic Trans, Trans Mfr CD THM400
- Base, 6.6L Eng VIN U, Not Available Trans
- Base, 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM326
- Base, 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM327
- Base, 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM330
- Base, 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM428
- Base, 6.6L Eng VIN U, Standard Trans, Trans Mfr CD SM430
- Base, 7.4L Eng VIN Y, Automatic Trans, Trans Mfr CD THM350
- Base, 7.4L Eng VIN Y, Automatic Trans, Trans Mfr CD THM400
- Base, 7.4L Eng VIN Y, Not Available Trans
- Base, 7.4L Eng VIN Y, Standard Trans, Trans Mfr CD SM326
- Base, 7.4L Eng VIN Y, Standard Trans, Trans Mfr CD SM327
- Base, 7.4L Eng VIN Y, Standard Trans, Trans Mfr CD SM330
- Base, 7.4L Eng VIN Y, Standard Trans, Trans Mfr CD SM428
- Base, 7.4L Eng VIN Y, Standard Trans, Trans Mfr CD SM430
- Custom, 4.1L Eng VIN D
- Custom, 5.0L Eng VIN F
- Custom, 5.0L Eng VIN X
- Custom, 5.7L Eng VIN H
- Custom, 5.7L Eng VIN K
- Custom, 5.7L Eng VIN L
- Custom, 6.6L Eng VIN R
- Custom, 6.6L Eng VIN U
- Custom, 7.4L Eng VIN Y
Database: LEMON
LEMON manuals were retrieved in late 2025. For very old vehicles, they are not very detailed.
RENDER: 1.0x
NO RELATED
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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.