Help please... different size tires on an svx?

[kwren]

two newer than the other two. Maybe a lot newer. I assume the newer ones are on the front, don't really know. what does that do to the transmission if it has been driven several thousand miles? Any way to ck if transmission is damaged from that and if so, what does it hurt?
Would it hurt to drive with the FWD fuse in for a couple of hundred more miles?

Thanks,
Keith