Death wobble at 70km/h

[the evil twin]

Yeah I think this issue has varied causes from vehicle to vehicle.

Absolutely agree... the Patrol front end is so 'touchy' that over the years I have found that pretty much every single component can be the culprit.

IMHO the slight favourites (but only just) would be the Panhard Bushes and Wheel Bearings as they are the quickest to wear or go out of adjustment.
Yes, Swivel hub preload, tie rod ends etc will all cause the death wobble (my latest episode of death wobble was wheel bearings, prev one was swivel hubs) but those areas usually take a substantially longer time to crap out so the amount of K's on the car can be a hint on where to initially look.

What I do is start with the cheapest/easiest inspections or replacements and work thru the list.

[dads tractor]

I recommend tyre balancing beads instead of wieghts 1 they dont fall off and 2 they continuously rebalance to give optimum performance. On my BFG km2 285 70 16 s we used a bag and a half per tyre ftom Jac's due to the weight of the tyres and no wobbles .The front end of my 1999 ute is 60-79 k old running the Amarda extreme 2" lift with all new bushes and bearings ,I dont go bush to lay in the dirt working on cars hence the new front end when the E Harrop diff went in.