is it possible to buy a single plug wire without having to buy a whole set? I need to replace the coil to opti wire...its arcing on the water pump.

 

Yes. GM will happily sell you one wire, for about 25 bucks.

 

screw that, ill just buy an autozone set for that price to get the one wire I need, and I can have it today.

 

carquest or napa sells singles.

I have plenty, just let me know what length you need and what ends are on it...the single or dual plug coil

 

well, turns out you can buy them separate at a lot of places, but none of the ones that any of them carry have the boots for the opti. Lots of other straight boots though. I just bought a cheap set from oreilly's and used that one. the whole set costs just as much as ordering an AC Delco coil wire from them.