Longreach replied:

I have Coopers but not a Prado and haven't had this problem.

Have you tried swapping the wheels front to back ?

Perhaps you know someone else with same wheels and you can try a tempoarary swap to see if the problem stays or moves with the wheels/tyres.

old-plodder replied:

I just put some older tyres back on the front.
Pulled to the left.
Swapped side to side, solved the problem.
But these tyres had done a few hard miles and may not be true.
On the back now.

Also,
I am told it is not recommended to reverse the direction of tyres by swapping them side to side. The carcass seems to get a lay in one direction. I have seen carcass failures where some one swapped tyres side to side and then did a 100km/h on the highway.

But it would be a way to check.

cmilton54 replied:

fit spare on lhs first if it still does it swap sides if it stops most likly out of round tyre
Cheers
Charlie