Three-Dimensional Measurements

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Three-dimensional measurements are provided in the absences of dimension information from your equipment supplier. Universal three-dimensional measuring equipment is required to use these numbers. You may need to adjust the height dimensions to match the datum height of your equipment. Only the width dimensions can be used to measure point-to-point. All holes, slots and fasteners are measured to the center.

Fig 1: Identifying Dimension Measuring Points - Frame (2500 HD/3500 Crew Cab Long Box 2WD/4W) (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

DIMENSIONS - FRAME (2500 HD/3500 CREW CAB LONG BOX 2WD/4W)

Location	Description	Length	Width	Height
1	Datum Line	0	0	0
2	Center Line	0	0	0
3	Zero Line 17 mm hole	0	523 mm	357 mm
a	32 mm Hole	1327 mm	411 mm	470 mm
b	28 mm x 18 mm Slot	995 mm	0 mm	357 mm
c	28 mm x 18 mm Slot	2700 mm	522 mm	611 mm
d	20 mm x 18 mm Slot	4609 mm	494 mm	821 mm
2WD shown; 4WD dimensions are the same, graphics similar. All dimensions are measured in millimeters, from a zero line, center line, and a common datum. All dimensions are symmetrical, unless otherwise specified.