Transmission Issues and 4wd issues

[Todd Varnco]

Truck runs great in 2wd. In any 4wd mode, it pulls dangerously to the right in gears 1-7, then goes back to normal 8-10. Must be electronic or transmission related. One dealer had it for 6 days and gave up. Another Ford dealer is going on day 8 and is completely puzzled. They have never seen it and keep having different people look at it.

Anybody ever see this? Bizzarro.