Need more usable area in the bed of your truck? Add one of our custom-fit bed extenders by Topline or AMP Research and gain valuable space by utilizing your truck's tailgate. We offer both flip-up and collapsible bed extenders to ensure that you can find the correct extender for your specific needs and budget. Made of high quality aluminum, these bed expanders are light enough for everyday use but durable enough for any cargo you may haul.
We offer custom fits for many popular truck manufacturers, such as Ford, Chevy, Dodge, and GMC. Find the correct fit for your truck by entering the year to the left.
1999 GMC Accessories
Towing
1999 GMC Trailer Hitch
1999 GMC Trailer Wiring
1999 GMC Brake Controller
1999 GMC Fifth Wheel Hitch
1999 GMC Gooseneck Hitch
1999 GMC Front Mount Hitch
1999 GMC Towing Mirrors
1999 GMC Base Plate for Tow Bar
1999 GMC Vehicle Tow Bar Brake System
1999 GMC Vehicle Tow Bar Wiring
1999 GMC BOLT brand vehicle and hitch locks
Cargo Control
1999 GMC Roof Rack
1999 GMC Tool Box
1999 GMC Ladder Rack
1999 GMC Tailgate
1999 GMC Truck Bed Extender
1999 GMC Trunk Bike Rack
1999 GMC Vehicle Cargo Control
1999 GMC Headache Rack
1999 GMC Truck Bed Sliding Tray
1999 GMC Camper Tie-Downs
1999 GMC Truck Bed Bike Rack
1999 GMC Spare Tire Bike Racks
Performance Accessories
1999 GMC Air Filter
1999 GMC Exhaust
1999 GMC Suspension Enhancement
1999 GMC Transmission Cooler
1999 GMC Performance Chip Tuners
1999 GMC Vehicle Lights
1999 GMC Tire Chains
1999 GMC Fluid Filters
1999 GMC Vehicle Sway Bars
1999 GMC Catalytic Converters
1999 GMC Vehicle Snow Plows
1999 GMC Salt Spreader
1999 GMC Vehicle Engine Heaters
1999 GMC Off Road Lights
1999 GMC Radiator Fan
1999 GMC Cabin Air Filter
1999 GMC Lift Assist
Vehicle Trim
1999 GMC Floor Mats
1999 GMC Tonneau Cover
1999 GMC Truck Topper
1999 GMC Nerf Bars - Running Boards
1999 GMC Trim Kits
1999 GMC Vehicle Covers
1999 GMC Grille
1999 GMC Grille Guard
1999 GMC Bug Shield
1999 GMC Side Window Vents
1999 GMC Truck Bed Mat
1999 GMC Bumpers
1999 GMC Mud Flaps
1999 GMC Van Cargo Mat
1999 GMC Truck Tailgate Lock
1999 GMC Truck Bed Rail Caps
1999 GMC Vehicle Tent
1999 GMC Vehicle Seat Covers
1999 GMC Replacement Mirrors
1999 GMC Windshield Wiper Blades
1999 GMC Windshield Covers
1999 GMC Vehicle Air Mattress