Wanted - Gear Vendors OD Unit for 1-Ton 4x4 6.5

[joed]

Does anyone have a good used gear vendors under/over drive unit they want to part with?

One set up for a GM 1-ton with the Borg Warner 4401 transfer case would be ideal, as that's what my truck has.

I can consider others as well, since I understand the transfer case adapters can be changed.

Thanks.

Joe.