Dimensions of the GMC Sierra - Generation 2 (1998-2006)

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On this page, you will find the general dimensions of the GMC Sierra 2500 & 2500 HD generation 2 (1998-to ), including cargo box dimensions. This page won't display all dimensions. If you are looking for the exact dimensions of a specific cab style, please select one below. First, let's make sure we have the right truck in front of you:

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Production years: 1998 - 2006 Generation: 2 Type of van: pickup Body styles: Regular Cab Extended Cab Crew Cab Also called: GMC Sierra Chevrolet Cheyenne VIA VTRUX VTA SolTRUX Chevrolet C/K International CV

Dimensions in tables

Sierra truck bed dimensions

Bodystyle Crew Cab
Fleetside Short Box
Crew Cab
Fleetside Long Box
Extended Cab
Fleetside Short Box
Extended Cab
Fleetside Long Box
Regular Cab
Fleetside Long Box
Volume (cu. ft.) 56.9 70.7 56.9 70.7 70.7
Length at floor 78.7 97.6 78.7 97.6 97.6
Inside height 19.5 19.5 19.5 19.5 19.5
Width at wheelhouse 50 50 50 50 50
Maximum width at floor 64.8 64.8 64.8 64.8 64.8

Wheelbase of the Sierra:

Bodystyle Length (inch)
Crew Cab - Fleetside Short Box 153
Crew Cab - Fleetside Long Box 167
Extended Cab - Fleetside Short Box 143.5
Extended Cab - Fleetside Long Box 157.5
Regular Cab - Fleetside Long Box 133

This model comes in 3 body styles

There are 3 bodystyles for this Sierra 2500 & 2500 HD in our database. For exact dimensions, please click on one below:

Most truck models come in different body styles. The Sierra 2 2500 & 2500 HD comes in 3 body styles. Typically the dimensions of different bodystyles differ slightly. The dimensions will greatly overlap, so this page will be helpful to get a general sense of sizing. You can click through to more detailed dimension pages per cab style.

Body styles generally have different cab styles, with the most common ones being the regular cab (two-door), extended cab (more space behind seats), and crew cab (four-door). Manufacturers also offer different trim types, although these will generally not affect dimensions so we don't always list them here.

GMC Sierra Crew Cab

Check the dimensions of the Crew Cab

GMC Sierra Extended Cab

Check the dimensions of the Extended Cab

GMC Sierra Regular Cab

Check the dimensions of the Regular Cab

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