Longest GMT400 chassis; ¾-ton 2500s optional with 454 V-8 & 4L80-E.
The GMT400 GMC Suburban 2500 is the heavy‑duty, ¾‑ton version of the iconic full‑size SUV—built to tow, haul, and rack up miles. This guide compiles trims, engines and transmissions, 4×4 hardware, axle ratios, capacities, year‑by‑year changes, and specs by model year, plus a quick list of commonly reported issues and owner FAQs. Where exact equipment […]
The GMT400 GMC Suburban 1500 is the last GMC-badged Suburban before the name transitioned to Yukon XL for 2000. Built 1992–1999 (with some late‑’99 overlap against the GMT800s), this half‑ton “C/K‑based” SUV delivered nine‑passenger space, truck‑grade towing, and the durability of GM’s small‑block V8s. This guide compiles trims, engines and transmissions, 4×4 hardware, axles and […]
Built on the GMT400 architecture, the Suburban 2500 is the three‑quarter‑ton version of Chevy’s long‑roof workhorse. It pairs the classic nine‑passenger SUV formula with heavy‑duty running gear—8‑lug hubs, stout axles, big‑block and diesel options, and serious tow ratings. This guide focuses on 2500‑series (C/K 2500) Suburbans for 1992–1999, with the goal of being your single […]
The GMT400‑generation Suburban 1500 is the long‑roof that made full‑size SUVs a family default: eight (or nine) seats, truck toughness, and V8 torque—wrapped in a body that still looks right parked anywhere. This guide covers the 1500 (½‑ton) models from the 1992 redesign through the 1999 final year, with powertrains, trims, axle ratios, year‑by‑year changes, […]
