It is really odd the TCS is an issue, maybe the TCS in the Patrol is a tad tricked up over what I am used to.
Suspension mods and the like usually affect ESC not TCS.

TCS should sense a spinning wheel via the ABS sensor and be selectable by the driver
ABS should always be functional unless you pull a fuse IE cannot inadvertently be disabled by the driver

Are any of you guys with the lift in the TCS equipped patrols running adjustable steering arms?
If the arm is adjusted to recentre the steering wheel does the issue not appear or go away?

As a point of interest an ABS vehicle will out brake and out handle a non ABS twin on bitumen but it is the other way around on Sand or Soft Surfaces.
That's why advanced off road driving techniques may include pulling the ABS fuse as part of the course.
Whatever you do... Don't forget to put the sucker back in tho