275/35/19 is the stock size for the rears. So figured we'd use the same tire when moving it to the front. Then for the rear, since the tires are wider, you would go down one step in sidewall profile, so 30 it is. 305/30/19 in the rear. 305 because stock is 245/275 so 30mm difference. 275+30=305.
Also, 245/45/19 has a total diameter of 26.7" (estimated). 275/35/19 has a total diameter of 26.6" (estimated). You want to keep the diameters as close to stock as possible. Stepping it down to a 30 sidewall puts the diameter at 25.6" (estimated).
Last edited by OMGWTFBBQ; 02-07-2014 at 03:17 PM.
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