No update for awhile. I had the 4.56's installed with a true trac in the rear. So far it's amazing. Wish I did the gears earlier. Drives like a different car and the speedo is finally back to normal now. Haven't had a good chance to test the true trac but it def locks up so far. Also went from the claws to Goodyear MTR Kevlars. Also another great upgrade, so much better on road than the claws.
Yeh they are 20mm taller than a mates MTZ 35's. But they are about 20mm skinnier on the shoulder of the tyre and the claws were very square edged. So that's helped a bit. Fuel economy is awesome again. Wish i did this from the start