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 MANUALSCHEVROLET1975FORWARD CONTROL 5.7L ENG VIN Y, AUTOMATIC TRANS, TRANS MFR CD 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALFUEL SYSTEMROCHESTER M4MC & M4ME 4-BARREL CARBURETORSCARBURETOR APPLICATION
1975 Chevrolet Forward Control 5.7L Eng VIN Y, Automatic Trans, Trans Mfr CD 400/M40
Carburetor Application
1975 Chevrolet Forward Control 5.7L Eng VIN Y, Automatic Trans, Trans Mfr CD 400/M40SECTION Carburetor Application
NOTE:
SERIES IDENTIFICATION: The vehicle series numbers used in this article have been abbreviated for common reference to both Chevrolet and GMC models. Chevrolet models use numerical designations as listed; GMC models are identified as follows: 10 = 1500; 20 = 2500; 30 = 3500.
1975 GENERAL MOTORS CORP.
| Application | Rochester Carb. No. Man. Trans. | Rochester Carb. No. Auto. Trans. | ||
|---|---|---|---|---|
| 350" V8 | ||||
| C10 | ||||
| Federal | 7045203 | 7045202 | ||
| California | 7045203 | 7045202 | ||
| G10 | ||||
| Federal | 7045219 | 7045218 | ||
| California | 7045219 | 7045218 | ||
| 454" V8 | ||||
| C10 | ||||
| Federal | 7045220 | |||
1976 GENERAL MOTORS CORP.
| Application | Rochester Carb. No. Man. Trans. | Rochester Carb. No. Auto. Trans. | ||
|---|---|---|---|---|
| 350" V8 | ||||
| C10 | ||||
| Federal | 17056209 | 17056208 | ||
| California | 17056509 | 17056508 | ||
| G10 | ||||
| Federal | 17056219 | 17056218 | ||
| California | 17056219 | 17056218 | ||
| 454" V8 | ||||
| C10-30 & P30 Motor Home | ||||
| California | 17056512 | 17056512 | ||
| P30 | ||||
| California | ..... | 17056517 | ||
1977 GENERAL MOTORS CORP.
| Application | Rochester Carb. No. Man. Trans. | Rochester Carb. No. Auto. Trans. | ||||
|---|---|---|---|---|---|---|
| 350" V8 | ||||||
| C10 | ||||||
| Federal | 17057209 | 17057202, 204 | ||||
| California | 17057503 | 17057502, 504 | ||||
| High Altitude | ..... | 17057582, 584 | ||||
| G10 | ||||||
| Federal | 17057219 | 17057218, 222 | ||||
| California | 17057519 | 17057518, 522 | ||||
| High Altitude | ..... | 17057588, 586 | ||||
| 403" V8 | ||||||
| P30 | ||||||
| Motor Home | ..... | 17057254 | ||||
| 454" V8 | ||||||
| C10 | ..... | (1) 17057221 | ||||
| C10-30 & P30 Motor Home | ||||||
| California | 17057512 | 17057512 | ||||
| P30 | ||||||
| California | ..... | 17057517 | ||||
|
||||||
1978 GENERAL MOTORS CORP.
| Application | Rochester Carb. No. Man. Trans. | Rochester Carb. No. Auto. Trans. | |||
|---|---|---|---|---|---|
| 350" V8 | |||||
| Federal | 17058201 | 17058202, 218 | |||
| 17058219 | (1) 17058204, 222 | ||||
| California | 17058503 | 17058506, 518 | |||
| 17058519 | (1) 17058508, 522 | ||||
| High Altitude | ..... | 17058509, 588 | |||
| ..... | (1) 17058510, 586 | ||||
| 400" V8 | |||||
| California | ..... | (1) 17058523, 527 | |||
| ..... | (1) 17058524, 528 | ||||
| 454" V8 | |||||
| Federal | ..... | 17058521, (1) 520 | |||
| California | ..... | 17058501, 521 | |||
| ..... | (1) 17508520 | ||||
|
|||||
1979 GENERAL MOTORS CORP.
| Application | Rochester Carb. No. Man. Trans. | Rochester Carb. No. Auto. Trans. | ||
|---|---|---|---|---|
| 350" V8 | ||||
| Federal | ||||
| Without A/C | 17059061, 201 | 17059065, 069 | ||
| 17059213, 215 | 17059205, 209 | |||
| With A/C | 17059061, 201 | 17059066, 068 | ||
| 17059213, 215 | 17059206, 208 | |||
| .... | 17059368, 508 | |||
| California | ||||
| Without A/C | 17059363, 503 | 17059366, 506 | ||
| 17059513, 515 | 17059509, 508 | |||
| With A/C | 17509363, 503 | 17509368, 508 | 17509513, 515 17509510, 586 | |
| 400" V8 | ||||
| Federal | ||||
| Without A/C | .... | 17059066, 077 | ||
| .... | 17059209, 227 | |||
| .... | 17059229 | |||
| With A/C | .... | 17059069, 076 | ||
| .... | 17059208, 226 | |||
| California | ||||
| Without A/C | .... | 17059527, 529 | ||
| With A/C | .... | 17059528 | ||
| 454" V8 | ||||
| Federal | ||||
| Without A/C | 17059212, 501 | 17059212, 521 | ||
| With A/C | .... | 17059520 | ||
| California | ||||
| Without A/C | 17059501, 512 | 17059512, 521 | ||
| With A/C | ..... | 17059520 | ||
RENDER: 1.0x
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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.