The o-rings that go between the crossovers on the fuel rails. I accidentally boogered up my old ones. The parts stores I've checked say they can't get them, and the dealership wants to sell me an entire kit for $22!! I'm not real excited about spending $22 just to get ahold of two o-rings. Ideas?

 

I'm not sure i know the ones you're talking about, but by chance would they be the same size as an injector O-ring?

 

Between the o-ring board at Aubichon Hardware and an o-ring kit in my garage, I got everything I needed. The aubichon rack should have everything you need tho. Just keep in mind that one of the little ones that go on the little rod that goes into the base of the FPR are a different size than the rest.

 

Make sure you don't get just any old plain rubber O rings either. The viton ones are impervious to fuel, but the other ones will break down and leak.

 

I broke down and spent the twenty bucks on mine. At least you know that you have the right stuff with the GM kit, and if it's already apart, why not do them all. And don't buy hardware store o-rings, they are for plumbing(water) not gasoline. Get neoprene rubber o-rings.

Oh yeah, ASM (Arizona speed and marine) sells the kit too. Probably more than GM charges though.