What is the wheel bolt pattern for a 1991 Chevy suburban?

The wheel bolt pattern for a 1991 Chevy Suburban depends on the trim level and whether it's a 1/2-ton or 3/4-ton model. Most commonly, it's 6x5.5" (also written as 6 on 5.5, or 139.7 mm). However, to be absolutely certain, you should:

* Check your owner's manual: This is the most reliable source.

* Look at the existing wheel: The bolt pattern is usually stamped on the wheel itself.

* Check the sticker on the driver's side doorjamb: This often lists tire size and other relevant information, sometimes including bolt pattern.

Don't rely solely on online information as there can be variations. Always verify before purchasing new wheels or tires.