You can try first at NAPA for things like King pins etc. Pretty much all the interior parts and some cab parts sheet metal like cab corners are the same as the pickups.
For wheels I'd just hit up tire stores, thats their thing.

I thought series 50 was closer to a 1.5 ton, too lazy to look in the book.

Kicking self for selling off my Taskforce trucks.
Still looking for an LCF or conventional big bolt in decent shape.


As of 10-26-2022, A 55.2 Taskforce long bed now the work begins