Just poking around looking for more info;
Hmmm, addco's approach to it;
https://www.summitracing.com/int/par...olet/model/c10
Thing that catch my attention; looks like L-brackets to bolt to the lower control arm for a link mount. Makes me wonder if thats to set a bar further forward to clear the power steering box by mounting the frame mounts direct like a passenger car, without the usual truck spacer bracket. 46" eye to eye for this particular bar.