Ok some great replies there.
I do around 40,000km a year.
It's a2015 dual cab 79 bought 13 months ago, it's in for its 40,000 now after having the right rear bearing go and destroy the hub along with it.
They told me the left one isn't much different.
No water ingress although I do quite a few creek crossings.
It hasn't done any beach work other than a couple of runs on Shoalhaven river sand at Stewart's Crossing.
It has a 3" lift kit, 285/75/16 tyres on 16x8 steel rims standard offset.
I'd say out of its 40k its done around 10,000 off road.
I've had run ins with Toyota for not doing the things listed in the service manual before so I made it clear at 20,000 I didn't want to pick it up after service and have to come back in the doors with an angry head on.
I do my services in between myself but for $300 fixed price every 20,000 and the fact they should be repacking wheel bearings each 20,000 I just take it in.
Toyota has a bad rep for wheel bearings in the 79's I've got 3 mates with very similar issues.
One failed before 20,000 another at 50,000 and another at 60,000.
That's only the guys I know.