80 series 33s or 35s

Demp
Take this with careful consideration. Modifications aren't always what they seem, some ok some have negatives for you and the vehicle.
Yes you can fit bigger tyres but the already low fuel economy will get worse with larger dia/circumference tyres trying to drive the load forward.
Wider rims for bigger tyres means more offset so the steering centre won't be near the tyre centre at the roadway. Makes for increasing unstable steering and increased swivel hub bearings and wheel bearing loadings. Less life. Larger tyres "Decrease" the braking power which some say should be better anyway. This is because the tyre dia has more leverage over the disc pad friction ability. Raising the vehicle, unless correction bushes are fitted to the trailing arms, will lessen the amount of steering axis caster angle and greatly increase wandering and vagueness of steering feel and inherent self centering ability of the steering design, Total lift is 50mm allowed, I think, so any combination of tyre size and suspension lifting should not exceed 50mm. Yes you see some in the trees but when they crash into anything, no insurance. Not sure how they get away with it.
Universal driveline angles may be affected by some degree of lift so knowing what the angles are BEFORE any mods is a good idea. Can easily be checked with a digital angle level gauge.. Any mismatch on angle or excessive angle of drive will cause driveline vibes as the drive shafts actually speed up and slow down twice every rotation. More effect when angles are greater.
Lifting may require better shock absorbers to retain control of the body mass seeing it is now higher than OE. Best not to find that out "by accident".

Learn how to 4wd with what you have first and then you will be in an better position to know what you want - just because every Toyota driver wants 35" tyres doesn't mean they are needed.

Learn first and then make the decisions.

Agree with everything RMD says. 35's will exceed the max tyre dia increase of 50mm above the max size tyre as stated on the tyre placard and allowed under VSB14

Good advice from Ozziecruiser lean how to drive the vehicle if it's your first 4wd don't be in a hurry to jack it up they are very capable off road in standard form like most 4wd's are.

Not sure about Victorian road rules but here in SA, we had 33 inch tyres (285/75/16) and a 50mm lift kit and it worked very well together for us, got us everywhere we wanted to go.

Any more than that is overkill really.

33s and a 2 inch lift is a standard mod for an 80, its a good compromise between tourer/weekend fun truck and daily driver.

If it's a petrol 80 fuel economy will suck no matter what you do.

G'day Demp

I would suggest doing a decent 4wd course before doing lift kit and big wheels.

With my experience in 4wdriving I have got my bog standard 4wd's over and through places the boys with lift kits and big wheels couldn't make it ! Lift kits and big wheels just make it easier for those who don't know how to drive properly :)

Cheers
Gazz

Depends what your doing with it. But unless your rock crawling or need huge ground clearance, bigger tires are basically a scam. 235/85/r16 is the biggest tire you will need for 95% of terrain and conditions. My patrol came with massive tires, pulled them straight off and replaced with 16x5.5” rims and 7.50r16s.

Larger tyres make your speedo and odometer highly inaccurate so you don't really know what your fuel economy is like after you fit them because your distance numbers become wrong. Your speedo and odometer will read lower usually by the same percentage as the difference in circumference between the tyres before and after. Your gearing will be affected and the car may run out of puff going uphill in top gear feeling quite gutless. Larger tyres increase turning torque forces and make it easier to break cv's and axles if you drop a spinning wheel on a protruding rock or tree root. Finally, 35's would be very close to illegal in most states so check the regs carefully. It's a lot of money to fork out to attract a potential defect notice. There are limits you can exceed on tyre width as well, so keep that in mind, 20mm from memory.