Help with spring clamps

[Michael M.]

I have four different sizes of spring clamps. Some are stamped with a "U" in a diamond, some with a "D", and some with no stamp. The question is about the middle two sizes. One clamp size is used for the fuel line hose and the other clamp size is used for the PCV hose. It seems like the PCV hose clamp is alittle bigger in diameter then the fuel line hose clamp due to the slightly bigger PCV hose. All the sizes I have for the PCV hose are differently shaped as far as the band width. Some bands are wide and some bands are the same size as the fuel line hose clamp. My question is was the wide band ONLY used for the PCV hoses for mid-60's corvettes.

[Michael M.]

Re: Help with spring clamps

Folks not sure if this question is too hard to answer or the question is not clear enough. I need to know whether PCV hose clamps are wider in size than fuel hose clamps for mid-60's corvettes.

[John H.]

Re: Help with spring clamps

Folks not sure if this question is too hard to answer or the question is not clear enough. I need to know whether PCV hose clamps are wider in size than fuel hose clamps for mid-60's corvettes.

Michael -

Mine are - the black PCV hose clamps are slightly wider than the green fuel hose clamps.