Wheel bolt pattern
From Crankshaft Coalition Wiki
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<table style="float: right;" border="1" cellpadding="2" cellspacing="0" width="275"><tr bgcolor="#CCCCFF"><th colspan="2">'''Conversion Table'''</th></tr><tr bgcolor="#FFF8DC"><th class="head">'''Inches'''</th><th class="head">'''mm'''</th></tr><tr style="text-align:center"><tr><td>4 x 3.93</td><td>4 x 100</td></tr><tr bgcolor="#eeeeee"><td>4 x 4.25</td><td>4 x 107.95</td></tr><tr><td>4 x 4.33</td><td>4 x 110</td></tr><tr bgcolor="#eeeeee"><td>4 x 4.50</td><td>4 x 114.3</td></tr><tr><td>4 x 5.12</td><td>4 x 130</td></tr><tr bgcolor="#eeeeee"><td>4 x 5.51</td><td>4 x 140</td></tr><tr><td>5 x 4.00</td><td>5 x 100</td></tr><tr bgcolor="#eeeeee"><td>5 x 4.25</td><td>5 x 107.95</td></tr><tr><td>5 x 4.50</td><td>5 x 114.3</td></tr><tr bgcolor="#eeeeee"><td>5 x 4.53</td><td>5 x 115</td> </tr><tr><td>5 x 4.72</td> <td>5 x 120</td></tr><tr bgcolor="#eeeeee"><td>5 x 4.75</td><td>5 x 120.65</td></tr><tr><td>5 x 5.12</td><td>5 x 130</td></tr><tr><td>6 x 5.5</td><td>6 x 139.7</td></tr></table> | <table style="float: right;" border="1" cellpadding="2" cellspacing="0" width="275"><tr bgcolor="#CCCCFF"><th colspan="2">'''Conversion Table'''</th></tr><tr bgcolor="#FFF8DC"><th class="head">'''Inches'''</th><th class="head">'''mm'''</th></tr><tr style="text-align:center"><tr><td>4 x 3.93</td><td>4 x 100</td></tr><tr bgcolor="#eeeeee"><td>4 x 4.25</td><td>4 x 107.95</td></tr><tr><td>4 x 4.33</td><td>4 x 110</td></tr><tr bgcolor="#eeeeee"><td>4 x 4.50</td><td>4 x 114.3</td></tr><tr><td>4 x 5.12</td><td>4 x 130</td></tr><tr bgcolor="#eeeeee"><td>4 x 5.51</td><td>4 x 140</td></tr><tr><td>5 x 4.00</td><td>5 x 100</td></tr><tr bgcolor="#eeeeee"><td>5 x 4.25</td><td>5 x 107.95</td></tr><tr><td>5 x 4.50</td><td>5 x 114.3</td></tr><tr bgcolor="#eeeeee"><td>5 x 4.53</td><td>5 x 115</td> </tr><tr><td>5 x 4.72</td> <td>5 x 120</td></tr><tr bgcolor="#eeeeee"><td>5 x 4.75</td><td>5 x 120.65</td></tr><tr><td>5 x 5.12</td><td>5 x 130</td></tr><tr><td>6 x 5.5</td><td>6 x 139.7</td></tr></table> | ||
| − | The PCD can be expressed in mm or inches. The PCD can be found on any 5 lug wheel by measuring from the center of the wheel (the axle hole), to the center of one of the wheel stud holes, and then multiplying that measurement by two. This is difficult on the 5 hole wheel because it is hard to judge the exact center of the large axle hole in the wheel. | + | The PCD can be expressed in mm or inches. The PCD can be found on any 5 lug wheel by measuring from the center of the wheel (the axle hole), to the center of one of the wheel stud holes, and then multiplying that measurement by two. This is difficult on the 5 hole wheel because it is hard to judge the exact center of the large axle hole in the wheel. to measure the bolt pattern on a five lug, you need to ignore the diagram and measure from one wheel stud to the second one away from it, you must skip one, not measure the distance of adjacents studs. the diagram is incorrect. |
It may be easier to check this measurement by placing a straight edge across the outer edge of two of the wheel bolt holes. Then measure from the center of the wheel hole that is opposite the two holes that the straight edge touches, to the inside (closest) edge of the straight edge. In other words you are measuring the distance from a straight line touching the outside of two wheel bolt holes, to the center of the opposite wheel bolt hole. This will be easier to actually measure since you don't have to guess where the center of the large hole in the wheel is, and will closely approximate the diameter of the imaginary circle (PCD) passing through all of the wheel bolt holes. | It may be easier to check this measurement by placing a straight edge across the outer edge of two of the wheel bolt holes. Then measure from the center of the wheel hole that is opposite the two holes that the straight edge touches, to the inside (closest) edge of the straight edge. In other words you are measuring the distance from a straight line touching the outside of two wheel bolt holes, to the center of the opposite wheel bolt hole. This will be easier to actually measure since you don't have to guess where the center of the large hole in the wheel is, and will closely approximate the diameter of the imaginary circle (PCD) passing through all of the wheel bolt holes. | ||
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*Chevrolet - all to '48 | *Chevrolet - all to '48 | ||
*Chevy/GMC - 1/2 ton 2WD P.U., van to '70 | *Chevy/GMC - 1/2 ton 2WD P.U., van to '70 | ||
| − | **1/2 ton 4x4 P.U. (incl 88-98 K1500), Blazer '71-'94, Suburban, Tahoe '95 - present | + | **1/2 ton 4x4 P.U. (incl. '88-'98 K1500), Blazer '71-'94, Suburban, Tahoe '95 - present |
**'88-'98 3/4 ton light duty with 6-bolt wheels | **'88-'98 3/4 ton light duty with 6-bolt wheels | ||
**'99-present Silverado/Sierra | **'99-present Silverado/Sierra | ||
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