Walked into Jegs with $400, came out with 4 tires and enough for a real cheap date. 2 275/60s for the rear, and 2 245/60s for the front. (BFG's)
15X8 rallys like yours.
I don't have them mounted on the burb yet... but I will here in a few more days.
Here's my old GMC with the same size tires. 10 inch rims in back, and 6.6 up front. The width of the rim makes a HUGE difference in the height of the tire.