I’m not getting a new rear or using spacers. I put time and money into conveying my 8-1/4 to a suregrip with 3:55 gears. I’d buy the Weld wheels with a 2-1/2” backspace before I did anything. They are about $350 each x 4 so like $1500 to switch to a name brand wheel from a knockoff. I like how the car looks with the 245s except from straight on from the back. Those 245s look a little skimpy….