First modern full-size GM frame; C/K pickups, Tahoe/Yukon & Suburban ruled the 90s.
The GMT400 Chevrolet C/K 2500 is the sweet spot of the OBS era—more muscle than a 1500, less bulk than a 3500. Sold from 1988–1998 (plus 1999 “Classic”), it came in two flavors: the 2500 Light Duty (~7,200‑lb GVWR, 6‑lug, 14‑bolt 9.5″ semi‑float) and the 2500 Heavy Duty (8,600‑lb GVWR, 8‑lug, 14‑bolt 10.5″ full‑float). You’ll […]
Platform/Program: GMT400 (fourth‑gen C/K). Coverage here is Chevrolet C/K 1500 light‑duty pickups (OBS) across model years 1988–1998, plus 1999 “Classic.” This guide focuses on the half‑ton (1500) line and the specialty 454 SS where relevant. Fast facts (at a glance) Reference backbone for generations/engines/chassis/airbags/third‑door timing: Chevrolet C/K (fourth gen) overview and model‑history sections. Wikipedia GMT400 […]
The GMT400 platform was General Motors’ first modern full-size truck architecture, replacing the long-running “Square Body” C/K trucks in 1988. Designed for better aerodynamics, improved ride comfort, and higher production efficiency, the GMT400 served as the foundation for a broad range of pickups, SUVs, and specialty models — from basic work trucks to high-performance limited […]
