Thread: 265 75 16's v 235 85 16's

highrr
My personal preference is for the 265/75/16 as a lot of the driving over here in the West is done on sand, so the additional footprint provides a bit larger footprint in the width. Both the tyre sizes are almost identical in circumference so no great benefit from either in that respect. I guess the question comes back to what terrain you wish to spend most of your time on.
For my P38 I run 2 sets of wheel/tyre combinations. I have the 265/75/16 Maxxis Big Horns for off road work and the Pirelli Scopion Zero's 255/60/18 for day to day road usage.
Another side benefit from the 265/75/16 is that they are also very common on the Jap cars and as such are readily available no matter where you are.
Gary

Thanks Gary, I'm leaning toward the 265 75 16 as they are more available

265/75/16 stuff up your diff ratios and you end up not being able to hold lockup in the converter under 90km for normal highway use as the tyres size increase is equivalent to a 9% increase in Tyre size from 29inch to 32 inch. I have fitted 265/75/16 Khumo mud Tyres and am now going to fit 4.1 : 1 diffs to get back my down hill braking as 4.1 : 1 gives me a 15% reduction so i pick up another 6% for down hill decent. It was good when i bought the car on 29 inch Tyre i could descend steep terrain without touching the brakes but since changing i have to brake a lot on descents which was not the case before. I live in Gippsland and have done a large amount of the High country to test the set up out. Hope this helps Gippsalnder

Gippslander
I agree, the only problem after the bigger tyres is the hill decent. Where did you get your 4.1:1 diffs from (and roughly how much $$$)?
Gary

Hope to get them ordered in the next couple of weeks i am getting Ashcroft models and lockers to suit decided to go all out and hopefully get a good all round tourer with the lower diffs giving hopefully better fuel as stated and also looking at fitting extra fuel tank in wheel well as the new tyres do not fit anymore.

You'll have to do a separate posting with the outcome. It will be an interesting project to follow. Good luck with the work, and take lots of pics
Gary

The 4.1:1 diffs in mine are from Great Basin Rovers. Around $1K-1.5K for the pair. A must have if you run 33" tyres.

Thanks for that Paul do you think they are as good or better than the Ashcroft and do you have lockers if so what brand. I have tried to read up on these diffs and was going to go with Ashcroft gears and lockers thinking by going with a common manufacturer it might save trouble when going to install them and i would just have to get new bearings for the full rebuild. Also noted Ashcroft state 16% decrease in ratio but GBR say 12%.