I just picked up a Rrc swb and it came with some steelies, the part number I got off of them was 526753 and I was wondering if this is a rare wheel or not so much. They're 15" steel rims and from a quick google search I was able to find that they came on late series trucks that were North America specific but that was all. Could someone please elaborate, please and thank you!
I had the 15" series wheels on my 1970 SIIA88. Nothing particularly special about them AFAIK. The story was that coupled with shorter tires it led to slightly better acceleration. It was still sloooow.