I'm having trouble finding the correct size adapters for our high side fitting. All the stores around here claim that 3/16" is the smallest adapter offered and that was still too large. Only one shop said there was a smaller 1/8" offered before, but that was only used on Ford's for a couple years and they didn't have it. Wondering if anyone knows the size before I move order anything else. I didn't have any luck searching for it on the forum.