Skip to content
GMT400 Information
GMT400 Information

Information on 1988-2000 GM Full-size Trucks and SUVs

  • Home
  • Specifications
    • Specifications
    • Tow Ratings
    • Engines
    • Axles
  • Models
    • Pickup
    • Suburban
    • Tahoe
    • Blazer
    • Special Models
  • Years
    • 1988
    • 1989
    • 1990
    • 1991
    • 1992
    • 1993
    • 1994
    • 1995
    • 1996
    • 1997
    • 1998
    • 1999
    • 2000
  • Documents
    • Information Sheets
  • About
GMT400 Information

Information on 1988-2000 GM Full-size Trucks and SUVs

Category: Special Models

Specs, information, and history on special or limited edition models of Chevrolet and GMC GMT400 trucks. This includes the SS454, CUCV II, Z71, and more!

1990

1990-1993 454 SS : 90’s Muscle Truck

Posted on

Introduced in 1990 as a performance package for the C1500 shortbed regular cab pickup, the 454 SS borrowed many of the design elements from the available Sport Equipment Package and added the 7.4L big block V8 from the heavy duty trucks (along with a few other additions). Only available for 4 years, true examples they are relatively rare, but they are often copied. All true 454 SS trucks will be regular cab, shortbed, fleet side trucks with the RPO code B4U.

Read more
1988

CUCV II : GMT400 joins the Military

Posted on

A rarely seen model is the 1987-2001 CUCV II, the militarized version of the civilian GMT400 platform. Only purchased in small numbers by the US military (Only number I have found in my research is around 800 units), with over 3,000 ordered by other governments across the world.

The CUCV II was a modernization of the more well know “squarebody” CUCV. Based almost directly on the civilian version, only specific changes were made for military use. CUCV II’s were not inherently more heavy duty than what was available to everyone else from their local GM dealership.

Read more
Gearing Calculator
Towing Ratings
GMT400 Vendors
Wikipedia

Recent Posts

  • 1992 Model Specifications : SUV’s join the platform
  • L29 454 : Modernized Big Block
  • GM Corporate 9.5″ 14 Bolt Semi-Floating Axle
  • 1990-1993 454 SS : 90’s Muscle Truck
  • L19 454 : Big Block Workhorse
  • GM Corporate 8.5″ 10 Bolt Semi-Floating Axle
  • GM Corporate 10.5″ 14 Bolt Full-Floating Axle

GMT400.info

Welcome to GMT400.info. I decided to start this site to compile as much information as possible on the Chevrolet/GMC GMT400 trucks and SUVs. I was looking for one place that was easy to search and link to for everyone interested in these trucks. I hope you find it useful!

©2025 GMT400 Information | WordPress Theme by SuperbThemes