1971 GMC JIMMY

402ci V8•4WD•AUTOMATIC•gas

5-Year Cost of Ownership

$7,091 maintenance + likely wear

~$1,418/yr · 120¢/mile equivalent

Compare this engine

4.3L V6

4.3L V6 Vortec

MOST COMMON JOBS8 jobs that 80% of techs look up

554 jobs across 18 categories

body (31)

brakes (41)

cooling (22)

drivetrain (36)

electrical (77)

emissions (1)

Oxygen Sensor Replacement
emissions

engine (70)

exhaust (25)

fuel (20)

fuel-system (9)

hvac (23)

ignition (16)

interior (24)

maintenance (33)

misc (2)

steering (26)

suspension (54)

transmission (44)

🔧

Be the first to unlock repairs for the 1971 GMC Jimmy

Procedures haven't been generated for this vehicle yet. Become the founding sponsor and we'll generate expert-grade, step-by-step repair walkthroughs for every common job on it — free for every mechanic and DIYer who looks it up after, forever.

🏆 Become founding sponsor — $99

One-time payment · Your name at the top of every procedure · Powers open data for everyone

Units

152 torque specs across 12 categories

brakes (23)

cooling (18)

drivetrain (17)

electrical (12)

engine (46)

exhaust (2)

fuel (4)

hvac (5)

ignition (3)

steering (8)

suspension (11)

transmission (3)

No fluid specs for this vehicle.

No DTC data for this vehicle.

BCI Group 27

Lead AcidOEM

estimated

650 CCA

Cold Cranking Amps

85 Ah

Amp Hours

140 min

Reserve Capacity

12V

Voltage

TerminalTop Post

PolarityLeft Positive

Dimensions12.06" × 6.81" × 8.88"

🛒 Cross-references (buy at any parts store)

Fitment notes: Large capacity required for 402ci big block V8; 4WD models may require higher CCA in cold climates

33 maintenance items across 1 category

maintenance (33)

No waveform references for this vehicle.

No NHTSA recalls on file for this vehicle.

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.

Stuck on a repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI

Building an app?

Free API access to all this data — 50 requests/day, no card required.

Get an API key →

Run a shop?

Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included. Built by the same team.

Try ShopBase →