My first post here. First, My 65 C 10 has two 15 inch 8 lug wheels non locking on the front, The rear has two 8 lug rear locking ring wheels. Is this correct? My other puckup is a 66 C20. It has two 15 inch lock ring on the front. The rear has 16 inch non 8 lug non locking rims. I doubt this is correct. What was so great about lock ring rims. Some are called split rim. Then some are called killers. appreciate any input. Stan