Yea, as jdag001 said.. "All the discussions by you and many others helped a lot! "
You can see in a calculator that 235=8.5rims and 265=9.5 rims so that is the right setup or standard size. but you can see the from/to sizes also
https://www.tyresizecalculator.com/t...ize-calculator
et42 is going to be tight so my two cents would be et40 up front is just right.
now that said, i would do et 42 and space it if it touched anything.
also kinda think et52 would be my ideal, or et 55 and space if needed.
i swear in my searching on the forum there was a guy that did et58 with 5mil spacers on a 265 setup. but i did a lot of reading and it was hard to find clear info, especially on if people really rubbed anywhere.
sorry Joe240 but the talk of going from all season tires to Mp4s and times and Better driving response is way off topic. please lets stay on fitment