GMC Suburban
GM's "Action Line" era Suburban — a genuinely capable full-size hauler, badge-engineered from Chevrolet but marketed toward a more upscale buyer.
Sharing its platform and mechanicals with the contemporary Chevrolet Suburban but distinguished by GMC-specific trim, grille, and engine options, the 1967–72 "Action Line" generation represented the SUV's formative years — before "sport utility" was even a recognized category — as a genuinely practical three-door wagon built on a truck chassis. GMC's traditional positioning as the more upscale, better-equipped counterpart to Chevrolet trucks gives this generation a slightly different collector identity than its more common Chevy sibling.
History
The 1967 redesign brought smoother, more modern styling to GM's full-size trucks and Suburbans, moving away from the boxier 1960s look while retaining genuine body-on-frame truck capability underneath.
GMC-specific engine options, including larger V6 and V8 choices not shared with the equivalent Chevrolet, gave GMC buyers genuine mechanical differentiation beyond just badging — a distinction GMC maintained as part of its more upscale market positioning.
This generation predates the modern SUV boom by decades, sold primarily to buyers who needed genuine hauling and towing capability — ranchers, large families, and fleet buyers — rather than the lifestyle-vehicle audience SUVs would attract from the 1990s onward.
Notable Versions
Panel Door / Barn Door models
Rear barn-door configuration rather than a single tailgate, offering distinct practicality for certain use cases.
4x4 Suburban
Four-wheel-drive versions, increasingly sought after today for genuine off-road-capable classic truck use.
Custom Sport Suburban
Higher trim level offering more comfort and equipment than the base work-truck specification.
What to Look for When Buying
Key inspection points from experienced collectors.
Rust in the frame, rocker panels, and floor is common
Full-size GM trucks of this era rust extensively in well-documented locations — a thorough underbody inspection is essential.
Verify GMC-specific engine originality
GMC's distinct engine options are part of what differentiates it from an equivalent Chevrolet — confirm what's actually under the hood versus a later Chevy engine swap.
Inspect 4x4 transfer case and front axle condition if equipped
Genuine 4x4 examples command a premium — confirm the system is original and functioning, not a later conversion.
Check for frame damage from towing or heavy use
These trucks were bought to work — verify the frame hasn't been bent or repaired from decades of genuine hauling duty.
Parts availability is strong given shared GM platform components
Many mechanical parts interchange with the Chevrolet equivalent, keeping restoration costs more predictable than for a lower-volume marque.
Quick Specs
- Engine
- 250 cu in I6 – 400 cu in V8
- Horsepower
- 155 hp (I6) – 175 hp (400 V8)
- Wheelbase
- 115–133 in (SWB/LWB)
- Weight
- approx. 4,700–5,200 lbs
- Transmission
- 3-speed manual; TH350/400 automatic optional
- 0–60
- approx. 14–16 seconds
Market Price Guide
Approximate USA asking prices
GMC Suburban For Sale
No listings currently available — check back soon
🔍
No listings right now
Set up an alert and we'll email you when a GMC Suburban is listed.