Summit says the MR Gasket oil fill extension tube they offer is 1.75" in diameter. That sounded pretty big to me. By your picture, 1.75 IS really big. Looks like I might e making something.
Is it the entire length of the tube that 1.75 size?
If you look closely at my pic, the tube is three different sizes. The part that attaches to the VC is the smallest. The end the fill cap pushes into is larger. 1.75? I dunno, I didn't measure it, but it may be.
