The 8x165.1 (or 8x6.5 inch):  bolt pattern is a heavy-duty truck configuration featuring eight lug nuts arranged in a circle with a 6.5-inch diameter. This pattern was the standard for American 3/4 and 1-ton trucks from the 1980s through the late 1990s/2010s.

Key Vehicle Fitments (8x6.5" / 8x165.1mm)

Chevrolet/GMC:

Silverado/Sierra 2500 & 3500 (1988–2010)

Suburban/Yukon XL 2500

Express/Savana 2500 & 3500

Dodge/Ram:

Ram 2500 & 3500 (1994–2010)

Ram Van B2500 (1994–2003)

Note: Dodge continued to use this pattern on some models after 2010.

Ford:

F-250 & F-350 (Pre-1999)

E-150/E-250/E-350 Econoline (2007–2014)

Other:

Hummer H2 (All years)

Nissan NV1500/NV2500/NV3500