* Wheel bolt pattern: While the number of lugs is the same, the *diameter* of the bolt circle and the *individual lug hole spacing* might differ slightly between the years. This difference could prevent the wheel from mounting correctly, or even damage the wheel studs.
* Wheel offset: This refers to the distance between the wheel's mounting surface and its centerline. Different offsets will change how far the wheel sits in or out from the wheel well. An incorrect offset can cause clearance problems with the suspension, brakes, or body.
* Hub bore: This is the center hole in the wheel that fits over the hub on the truck. The hub bore diameter can vary between model years.
* Backspacing: Similar to offset, this measures the distance from the mounting surface to the inside of the wheel.
To be certain, you must find out the exact wheel specifications (bolt pattern, offset, hub bore, backspacing) for both the 2006 rims and the 1997 truck. You can usually find this information stamped on the wheel itself, in your owner's manual, or through online resources dedicated to vehicle specifications. A parts store or tire shop can also help you determine compatibility. It's not enough to know they are both 8-lug.
Trying to force mismatched wheels onto your truck can cause serious damage, including wheel studs breaking or wheels coming loose while driving.
