Plenty of manufacturers produce 'bespoke' product lines for different distributors.
Happens all the time with firearms.
And I'm not talking about a limited edition either.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.