There simply aren't that many 3/4 ton trucks that are being
restored, everyone wants 3100 five window trucks. Isn't worth
tooling up for a small market such as the 3600.
I've been trying for a decade to get someone interested in
making a run of 3.90 gears for the HO52/72 rear axle but
there again, not enough to justify making a batch of them.
There certainly is a market for 3600 hard to find parts, all
we need is someone with the manufacturing skills to pick up on
it.
dg
