Hi All,
I just installed LR3 wheels on my 2011 LR4 and here are my initial impressions:
30mm spacers do not 100% clear the caliper and some very minor grinding is required
265/65 BFGs (31.7 diameter) will rub at full lock against the ends of the body frame at front wheel (body frame end knob sticking out at the bottom back of the wheel inner fender well). I had these end knobs cut to flush with the inner fender (as these are ends of the body frame I don't think any of the frame structure strength was impacted but please let me know otherwise as then I will need to make some adjustments) and now it doesn't rub but now I have two open holes to my body frame which will accumulate dirt if I go offroading.... I will have to have it welded shut if I find someone willing and able to do it.... As for the offroading with these tires I can already see that they may rub even with these alternations unless you are at the offroad height with additional lift (Johnson rods or IID tool but I am not sure how much they will rub )
As for the ride quality - it is definitely stiffer and less comfortable than 19in coopers
All in all - if you are serious about offroading going to 18 in is a must but boy... It is suuuuch a pain for LR4s......