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1977 GMC C35 1977 Sierra Grande Cab & Chassis

Repair services & inexpensive new parts for 1977 GMC C35 1977 Sierra Grande Cab & Chassis with 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated engine.

The 1977 GMC C35 Sierra Grande is a robust, classic pickup truck featuring a 4.8L 292 cubic inch inline-6 gasoline engine. With its naturally aspirated OHV (Overhead Valve) design, this rear-wheel-drive, two-door cab and chassis truck was built to handle rugged tasks with durability and reliability. It's a vehicle that appeals to enthusiasts who appreciate vintage trucks for their simplicity and solid engineering. Owners often seek out affordable replacement parts and repair services to maintain its performance and classic appeal.

Common Issues

  • Engine oil leaks, often from the valve cover gasket.
  • Worn-out suspension components, such as bushings and shocks.
  • Carburetor issues leading to poor fuel efficiency and stalling.
  • Rust in the chassis and body panels, particularly in areas with harsh winters.
  • Electrical system malfunctions due to aging wiring and connectors.

Maintenance Tips

  • Regularly change engine oil and filter to maintain engine health.
  • Inspect and replace worn suspension parts to ensure smooth handling.
  • Clean and adjust the carburetor periodically for optimal performance.
  • Check for rust and apply undercoating to protect against corrosion.
  • Inspect all electrical connections and replace any brittle wiring.

Typical Repair/Ownership Cost Ranges

  • Engine repairs: $500 - $2,500 depending on the issue.
  • Suspension overhaul: $300 - $1,200.
  • Carburetor rebuild or replacement: $150 - $400.
  • Rust repair and bodywork: $500 - $3,000.
  • Electrical system repairs: $100 - $800.

Buying Advice

  • Inspect the chassis and body for rust and previous repair work.
  • Check the engine for oil leaks and listen for unusual noises.
  • Test drive to assess suspension and steering performance.
  • Verify the condition of electrical components and lights.
  • Review maintenance records, if available, for the vehicle's history.

FAQ

  • What is the average fuel economy for the 1977 GMC C35? The typical fuel economy ranges from 10 to 15 miles per gallon, depending on driving conditions and maintenance.
  • How often should the engine oil be changed? It's recommended to change the engine oil every 3,000 miles or every 3 to 6 months.
  • Can the carburetor be upgraded for better performance? Yes, modern aftermarket carburetors can improve performance and fuel efficiency.
  • What kind of tires are recommended for this vehicle? Heavy-duty all-terrain tires are recommended for durability and traction.
  • Is it difficult to find parts for this truck? While some parts may be harder to find, many components are available through specialty suppliers and online stores.
  • Does this vehicle have power steering? Power steering was optional; check if the specific truck you're interested in has it equipped.
  • Are there any modern upgrades that can be installed? Yes, upgrades such as electronic ignition systems and modern brake kits can enhance reliability and safety.

Have Questions about GMC C35 1977 Sierra Grande? Ask the assistant for questions about mileage, performance, repairs, parts, recommended maintenance and more.


Make: GMC
Model: C35
Trim: Sierra Grande Cab & Chassis 2-Door
Year: 1977

Quick Info

Fuel: GAS
Aspiration: Naturally Aspirated
Engine Displacement: 4.8L
Engine CC: N/A
Engine CID: 292
Engine Block Type: L
Cylinder Type: OHV
Cylinders: 6
Drive: RWD
Body Type: Cab & Chassis
Doors: 2

Repair services & inexpensive new parts for 1977 GMC C35 1977 Sierra Grande Cab & Chassis with 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated engine.