To know for sure, you need to determine the following for both the Tacoma rims and the Chevy 1500:
* Bolt Pattern: This is usually expressed as something like 6x5.5" or 6x139.7mm (meaning 6 lug nuts on a circle with a diameter of 5.5 inches or 139.7mm).
* Center Bore Diameter: The size of the hole in the center of the wheel.
* Wheel Offset: This measures the distance between the wheel's mounting surface and the centerline of the wheel.
If these measurements don't match exactly, the rims won't fit properly, or worse, they could be unsafe. Improperly fitted wheels can lead to vibration, handling problems, and even wheel separation at high speeds.
In short: Don't assume compatibility. Check the specifications for both the rims and your truck before attempting to mount them. A parts store or tire shop can help you verify the specifications and determine compatibility.