I was looking to see what RockAuto had for plug wires and noticed there are two for Delco'*. 746R and 9746R. Anyone know what the difference is?

edit - I googled them and did not get a single hit on the 9476R... must be a typo or something.

thanks for looking

I recall that the number you can't find should be the older style of ignition wires, but they both are virtually the same. I think the older ones look cooler, though.