Mid America sells a clear coat removal kit for $39.95, item # 17748. Tel # 800-500-8388.
I used 00 steel wool and a heavy duty wheel polish to remove the clear coat from my wheels because the CE wheels are also painted and I did not want to disturb that part of the wheel.
I don't belive that they put clear coat on the wheels untill around 81 or 82 I have a 78 and it doesn;t. I use mothers aluminum and wheel polish,if you try it and black residue comes off than you don't have clear coat on the wheels
Thanks everyone for the good ideas. I will try the Mothers to determine if i have the plastic coating. In 1973 only 4 cars had the alloy wheels installed as an option. I have one of those cars. They were put on alot of cars in the late 70's.