Zeb, get in line! (And thank you for posting this on the forum too)
Lots of people have responded to this question thus making me think that I might not be the best person to be writing this question and answer column.
Yes, there are/or were two kits that were available, which contained suspension parts for two models in each. Even though I was too young to have purchased one of these kits off the shelve, and none were available on eBay at the time I did the research, but.... yes, there were two such Parts Pac kits.
Yes, the parts were specifically designed for the two-dragster kits, one of which is shown, and for two roadster/drag kits which were also parts pacs.
YES, I WAS WRONG!!!! I answered this and posted a response which will be published in issue #120
YES, I WAS WRONG!!!! Anybody else want to take on this project of researching, responding and writing the Ask Gregg & Jairus Column? I am open to suggestions...