Hi,
My 2006 Forester has 2013 tires (about 7mm) on the front axle and 2009 tires (about 5mm) on the rear axle. All tires are from the same brand / model / size.
Question here is what's the best place to have the most tread tires? On the front or rear axle?
Now before we start the discussion I ask this since the Subaru's have AWD. I know that front wheel drive only or rear wheel drive only vehicle's it's best to have the most tread on the rear, I'm not intersted in this discussion!
Some back ground;
i have had for years a Kia Sorento (pre 2009) with the TOD system and one way to distroy this TOD system is having the most tread tires on the front axle. This has to do with the driven axle is the rear and the front axle kicking in when there is a speed difference between the rear and front axle. So the most tread (larger diameter) tires on the front makes the TOD constantly sending power to the front axle and wearing the magnetic clutch out, repair cost about £3000 at Kia. The newer Sorento's do have full time front wheel drive wiith the rear axle kicking in when needed.
Now as far as I understood my 2006 AUTOMATIC SG Forester has full time front wheel drive with the TOD system controlling the rear axle when needed.
btw; I did hack my TOD system;
http://youtu.be/-uABCiTjyoI
But that's another story for another day (one day I'm doing the same with the Forester)
Many thanks,