1975–1986 GMC K2500

5.7L V8•4WD•gas•350

5-Year Cost of Ownership

$7,550 maintenance + likely wear

~$1,510/yr · 130¢/mile equivalent

Compare this engine

4.3L V6

6.5L V8

7.4L V8

Labor Times — 1975–1986 GMC K2500

MOST COMMON JOBS8 jobs that 80% of techs look up

510 jobs across 18 categories

body (35)

brakes (41)

cooling (21)

drivetrain (32)

electrical (68)

emissions (1)

Oxygen Sensor Replacement
emissions

engine (61)

exhaust (25)

fuel (20)

fuel-system (8)

hvac (22)

ignition (12)

interior (24)

maintenance (32)

misc (2)

steering (23)

suspension (39)

transmission (44)

Repair Procedures — 1975–1986 GMC K2500

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body · 35

brakes · 41

cooling · 21

drivetrain · 32

electrical · 68

emissions · 1

Oxygen Sensor Replacement$3 — unlock

engine · 61

exhaust · 25

fuel · 20

fuel-system · 8

hvac · 22

ignition · 12

interior · 24

maintenance · 32

misc · 2

steering · 23

suspension · 39

transmission · 44

Torque Specs — 1975–1986 GMC K2500

Units

134 torque specs across 11 categories

brakes (23)

cooling (16)

drivetrain (17)

electrical (12)

engine (36)

exhaust (2)

fuel (4)

hvac (5)

ignition (2)

steering (4)

suspension (13)

Fluid Capacities — 1975–1986 GMC K2500

DTC Codes — 1975–1986 GMC K2500

No DTC data for this vehicle.

Battery Specs — 1975–1986 GMC K2500

BCI Group 78

Lead AcidOEM

estimated

630 CCA

Cold Cranking Amps

85 Ah

Amp Hours

140 min

Reserve Capacity

12V

Voltage

TerminalSide Post

PolarityLeft Positive

Dimensions10.25" × 7.06" × 7.69"

🛒 Cross-references (buy at any parts store)

Buy on Amazon

Fitment notes: Side post terminals standard on GM truck applications; battery located under hood on driver side

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Control Modules — 1975–1986 GMC K2500

Module data for this vehicle is being compiled — check back soon.

Maintenance Schedule — 1975–1986 GMC K2500

32 maintenance items across 1 category

maintenance (32)

Wiper Blade Sizes — 1975–1986 GMC K2500

🌧️ Wiper Blades

1975-1986

16″

Driver side

16″

Passenger side

Attachmenthook

📝 Square body GMT400 predecessor generation, no rear wiper

🛒 Part numbers on the shelf

16″Bosch ICON 16A/B · Rain-X WeatherBeater RX30116 · ANCO 31-16Buy on Amazon

Size-standard part numbers — verify your connector type before buying.

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Full wiper guide for this K2500 →

NHTSA Recalls — 1975–1986 GMC K2500

No NHTSA recalls on file for this vehicle.

Vehicle Info — 1975–1986 GMC K2500

Wiper blades

Square body GMT400 predecessor generation, no rear wiper

Driver side

16in

Passenger side

16in

Attachment

hook

16″ fits: Bosch ICON 16A/B · Rain-X WeatherBeater RX30116 · ANCO 31-16

Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.

Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1975–1986 GMC K2500 5.7L V8 and can vary by trim.

🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.

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