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.
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HOMESERVICE MANUALSGMC1972P25/P2500 VAN 5.0L ENG VIN FREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETUNE-UPTUNE-UP - V8ENGINECAPACITIES (EXCEPT COOLING)
1972 GMC P25/P2500 Van 5.0L Eng VIN F
Capacities (Except Cooling)
1972 GMC P25/P2500 Van 5.0L Eng VIN FSECTION Capacities (Except Cooling)
| Application | Quantity | |||||||
|---|---|---|---|---|---|---|---|---|
| Crankcase | (1) 4 qts. | |||||||
| Auto. Trans. | ||||||||
| TH 350 | 10 qts. | |||||||
| TH 400 | 9.5 qts. | |||||||
| Man. Trans. | ||||||||
| 3-Speed | 3.5 pts. | |||||||
| 4-Speed | 7 pts. | |||||||
| Four-Wheel Drive | ||||||||
| Transfer Case | 5 pts. | |||||||
| Power Take-Off | 1 pt. | |||||||
| Drive Axles | (2) | |||||||
| Fuel Tank | ||||||||
| "G" Models | (3) 24.5 gals. | |||||||
| Panel, Suburban & Jimmy | ||||||||
| 1500 Series | 20.5 gals. | |||||||
| 2500 Series | 23.5 gals. | |||||||
| "C" & "K" Models, All Others | ||||||||
| 1500 Series | 20.2 gals. | |||||||
| 2500 & 3500 Series | 21 gals. | |||||||
| P-1500 | 17 gals. | |||||||
| P-2500 & 3500 | 30 gals. | |||||||
|
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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.