My mechanic who I have used for decades arranged my 255/60R18 tyres. They are a lot larger than 235/60R18. 245/70R17 are not much larger than my current tyres. Speedo should read spot on.

If you are towing uphill at the car's 2 tonne limit that would be more stress than the reduction in torque with large tyres.

Our outback corrugated roads are more stress than anything else. At least with large tyres you can drop pressure further to reduce stress.

https://www.abc.net.au/news/2021-06-03/fam...e/13372168 Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Crikey that does look bad! Yes sorry experienced the same out in Namibia/Botswana but out here in the U.K. and the possible 25mm lift 245/70 provides doesn’t seem worth it (all though the pot holes are almost on par with Botswana) Corrado VR6 Mystic Blue - Gone
Freelander 2 Orkney Grey