1977 GMC C-15 Suburban Sierra Grande

Courtesy of Mecum Auctions

• Believed to be just over 43,000 actual miles

• Trailer special package

• One Washington state owner since new

• Air conditioning

• Automatic transmission

• Two-wheel drive

• 75th anniversary for GMC in 1977

• Tilt steering column

• Power steering

• Roll-down rear window at tailgate

• Factory luggage rack

• Original owner’s manual

• 10,000-lb GVW rating