Hello. So i recently picked up this beauty of a 1990 Firebird Formula and it had rims on it i never had seen before on any firebird. Does anybody possibly know what these are or where they came from? The Rims dont have any markings on them, brand or anything and they are using the performance tire size (245 50 R16). The Center "Tri-Spokes" do thread off.

 

Looks like a knockoff type Halibrand wheel. I did a search and didn't find an exact match in my few minutes of looking. It's the same styling, tends to be used on a lot of Fords.