Used GMC Sierra 2500HD SLE1 Extended Cab 4WD for Sale Nationwide
324 results
4.5 Overall rating
Filter by rating
Monty V
Reviewed a 2006 GMC SLE1 Extended Cab 4WD on Nov 13, 2009
4wd great but didn't pull trailer as I well as I thought a 6.0 should. Bouild quality great no problems squeaks or rattles. Appearance looked good with just the front lifted to level truck and 285/75/16 BFG All Terrrain's were great at the dunes pulling toy hauler for quads. Just don't expect the 6.0 gas to pull the mountains real good.
Ken W
Reviewed a 2006 GMC SLE1 Extended Cab 4WD on Jan 26, 2008
Definetly a truck that rides like a car on the highway , but also gives you the power and durability needed ifor off roading.
Relevant articles

Best Diesel Trucks in Canada in 2026
The number of new diesel trucks in Canada has dwindled in recent years amid concerns over carbon emissions. But one thing is certain: when you need a diesel truck, there’s no substitute.

2026 GMC Sierra 2500HD: Price, Specs and Release Date
The GMC Sierra 2500HD ostensibly competes with the Ford F-250, the Ram 2500, and the Chevrolet 2500HD, but it gets a leg up in the luxury department, especially with its bougie Denali Ultimate trim.

GMC Sierra 2500HD Buying Guide: Cost, Reliability, and the Best Years to Buy
Discover the ultimate buying guide for purchasing a used GMC Sierra 2500HD, covering each generation since 2001. Whether you're a first-time buyer or a GMC enthusiast, this comprehensive overview will help you research your next pre-owned GMC Sierra 2500HD.









