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 (1500 Ext. Cab Short Box 2WD/4WD) (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

DIMENSIONS - FRAME (1500 EXT. CAB SHORT BOX 2WP/4WD)

Location	Description	Length	Width	Height
1	Datum Line	0	0	0
2	Center Line	0	0	0
3	Zero Line 17 mm hole	0	522 mm	382 mm
a	13 mm Tow Hook Hole	1441 mm	387 mm	562 mm
b	32 mm Hole	1327 mm	411 mm	552 mm
c	27 x 18 Slot	2457 mm	523 mm	609 mm
d	20 x 18 Slot	3887 mm	496 mm	773 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.