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Bolt pattern, lug pattern, PCD, or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs.
Bolt patterns can be 4, 5, 6, 7, or 8 and either holes or studs. The bolt pattern consists of two numbers - the first number
indicates how many bolt holes or studs are on the vehicle, the other number describes how far apart they are in either inches
or millimeters. A bolt pattern of 4x100 indicates a 4 bolt pattern on a circle with a diameter of 100mm. If you need assistance
Measuring your bolt pattern please click here to view our Tech Tips page.

Find Your Chevrolet/GMC Vehicles Bolt Pattern Below
CHEVROLET/GMC BOLT PATTERNS
MODEL YEAR O.E. WHEEL SIZE BOLT PATTERN STUD SIZE HUB/CENTER BORE OFFSET
SSR 04-on 04-UP   6x127 12x1.5 78.3 H
S-10, S-15 BLAZER, JIMMY, SONOMA 2X4 MID SIZE 82-UP 15x7 5x120.7 12x1.5 70.3 L
S-10, S-15 BLAZER, JIMMY, SONOMA 4X4 MID SIZE 83-UP 15x6 5x120.7 12x1.5 70.3 H
SAVANA 1500 01-on 01-UP 16x6 6x127 14x1.5 78.3 L
SILVERADO 1500 07-UP 17"-18" 6x139.7 14x1.5 78 M/H
SILVERADO 1500 99-06 16"-17" 6x139.7 14x1.5 78 L
SILVERADO 2500 07-10 16"-17" 8x165.1 14x1.5 116.6 M
SILVERADO 2500 99-06 16"-17" 8x165.1 14x1.5 116.6 L/M
SUBURBAN 1/2 TON 2X4 07-UP 16"-22" 6x139.7 14x1.5 78.3 M/H
SUBURBAN 1/2 TON 2X4 00-06 15x6(7) 6x139.7 14x1.5 78.3 M
SUBURBAN 1/2 TON 2X4 71-91 15x6(7) 5x127 1/2-RH 78.3 L
SUBURBAN 1/2 TON 4X4 71-91 15x7 6x139.7 7/16-RH 78.3 L
TAHOE/YUKON (2X4 & 4X4) 07-UP 17"-22" 6x139.7 14x1.5 78.3 M/H
TAHOE /YUKON (2X4 & 4X4) 00-06 15x6(7) 6x139.7 14x1.5 78.3 M
TRACKER 98-UP 15x6 5x139.7 12x1.25 108 L/M
TRAILBLAZER & EXT 02-UP 16"-20" 6x127 12x1.5 78.3 M/H
UPLANDER 06-UP 17" 6x115 12x1.5 70.3 H
UPLANDER 05 17" 5x115 12x1.5 70.3 H
VAN G-SERIES 1/2 TON 71-96 15x6 5x127 1/2-RH 78.3 L
VAN G-SERIES, 3/4 TON 96-97 16x6 6x139.7 14x1.5 78.3 L
VENTURE 97- 15x6 5x115 12x1.5 70.3 H
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