Na 1990 sdub injector o ring size?
Hey guys pulled my Injectors today from my rail when I took it off and replacing the o rings the packet I bought from repco for 55$ weren't the right size that he said they would fit even showed a sample looked fine but were a bit fat won't fit in the rail
So guess ill take them back, and get some from an Injection place or somewhere else but what size should I need or just take the sample with me?
Or any way to shrink the outside of the ring?
Thanks guys
Ethan