I had mine done several months ago. Requires disassembly of suicide doors. Then a reinforcement is applied around the belt mount. Vacuum out drill leavings and reassemble. Took about 4 hours.
I have that size Michelin LTX/MS on my 2004. I notice a little 'mushiness' in the ride - side to side motion, like the sidewalls are flexing more than the 70 series. But it is not a total putoff.