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 PERFORMANCEIGNITION SYSTEMDISTRIBUTOR SPECIFICATIONSCHRYSLER DISTRIBUTOR ADVANCE SPECIFICATIONS
1972 GMC P25/P2500 Van 5.0L Eng VIN F
CHRYSLER Distributor Advance Specifications
1972 GMC P25/P2500 Van 5.0L Eng VIN FSECTION CHRYSLER Distributor Advance Specifications
NOTE:
FOR ENGINE RPM AND DEGREES. MULTIPLY SPECIFICATIONS BELOW BY 2.
| Distributor Part No. | Rot. (1) | Automatic Advance (Distr. Degrees & RPM) | Vacuum Advance (Dist. Deg. & Inches of Hg.) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deg. | RPM | Deg. | RPM | Deg. | RPM | Deg. | In. Hg. | Deg. | In. Hg. | ||||||
| 3656237 | C | 0-5 | 550 | 8-10 | 800 | 12-14 | 2000 | .5-3 | 7 | 6-8.5 | 11 | ||||
| 3656243 | C | 1-4.5 | 650 | 8-10.5 | 950 | 12-14 | 2000 | .5-3 | 7 | 6-8.5 | 11 | ||||
| 3656252 | C | .5-4.5 | 550 | 9-11 | 900 | 12-14 | 2000 | .5-3.5 | 10 | 5-8 | 15 | ||||
| 3656257 | C | .5-4.5 | 550 | 9-11 | 900 | 12-14 | 2000 | .5-3 | 7 | 5-7.5 | 9.5 | ||||
| 3656260 | C | .5-3.5 | 700 | 9-11.5 | 1150 | 12-14 | 2000 | .5-3.5 | 10 | 5-8 | 15 | ||||
| 3656266 | C | .5-3.5 | 700 | 9-11.5 | 1150 | 12-14 | 2000 | .5-3 | 7 | 5-7.5 | 9.5 | ||||
| 3656272 | C | 1-6 | 550 | 8-10.5 | 800 | 14-16 | 2100 | 1-4 | 9.5 | 8-10.5 | 15 | ||||
| 3656275 | C | 0-4 | 600 | 9-11 | 1000 | 14-16 | 2100 | 1-4 | 9.5 | 8-10.5 | 15 | ||||
| 3656278 (2) | C | 1-5 | 650 | 12-14 | 1050 | 11-13.5 | 2400 | .5-3.5 | 9 | 7-10 | 12.5 | ||||
| 3656329 | CC | 1-5 | 650 | 8-10 | 900 | 12-14 | 2000 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656332 | CC | .5-4 | 650 | 6-8 | 950 | 10-12 | 2000 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656335 (2) | CC | 1-5 | 650 | 8-10 | 900 | 13-15 | 2250 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656338 (2) | CC | .5-4 | 650 | 6-8 | 950 | 10-12.5 | 2500 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656341 (2) | CC | .5-4 | 650 | 6-8 | 950 | 10-12.5 | 2500 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656344 | CC | .5-4 | 650 | 6-8 | 950 | 10-12 | 2000 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656347 (2) | CC | 1-5 | 650 | 8-10 | 900 | 13-15 | 2250 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656350 | CC | 1-5 | 650 | 8-10 | 900 | 12-14 | 2000 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656353 (2) | CC | 0-3.5 | 650 | 8-10.5 | 1000 | 8-10.5 | 2150 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656390 | C | 1-6 | 550 | 8-10.5 | 800 | 14-16 | 2100 | 1-4.5 | 12 | 8-10.5 | 15 | ||||
| 3656429 (2) | C | 1-6 | 550 | 8-10.5 | 800 | 13-15 | 1900 | 0-3 | 9 | 7-10 | 14 | ||||
| 3656435 (2) | C | 0-4 | 600 | 9-11 | 1100 | 13-15 | 1900 | 0-3 | 9 | 7-10 | 14 | ||||
| 3656587 (2) | C | 1-6 | 550 | 8-10.5 | 800 | 14-16 | 2100 | 1-4.5 | 12 | 7-10 | 14.5 | ||||
| 3656593 | CC | 1-4.5 | 550 | 7.5-9.5 | 800 | 14-16 | 1900 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
| 3656596(2) | CC | 1-4.5 | 550 | 7.5-9.5 | 800 | 13-15 | 1800 | 1-4 | 10.5 | 8-10.5 | 15.5 | ||||
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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.