I replaced my 4 link control arms on my 1974 estate wagon with tubular control arms from Summit Racing. The change out was straight forward with good results. I am working on a 1975 panel express and am planning the same upgrade on its 4 link.
Summit Racing also offers AJE tubular A control arms for the front. I wondered if anyone had experience with these. The tubular A control arms are designed for S-10 ball joints and there is a coil-over option. I am assuming the coil-over option is set up for the QA1 system.
https://www.summitracing.com/search/par ... model/vega