Originally Posted by Bo Walker
I run Michelins on three 4 wheel vehicles and enjoy them. But, I am going to Goodyear for the motor home. Michelins have not proven to be dependable on the motor home.
Contrary to forum advise, I am running the last two Michelins on the left rear along with Goodyear in all other positions. They are the same size. However the air pressure requirement isn't the same. Therefore, I run 85 psi in the Michelins and 95 in the right side rear Michelins.
Whether it makes sense or not, I just made an 800 mile trip with no problem with the tires. Usually I have a Michelin to blow out on an 800 mile trip even though I check the pressure before beginning the trip.
Unless they are very, very close in size, you can hurt your diff doing this. Remember, same trade size is NOT the same as 'same diameter' or 'revolutions per mile'. Needing different pressures is also a clue here..
And, in the rain/light snow both sides will have different traction and one will slip more, also hurting the diff.