[Lee H]

Originally Posted by Captainfab

Have you checked with your local GM dealer parts department? You should get the dipstick itself to go with the correct tube. The tube should be a semi-tight fit that will require some gentle tapping with a hammer to install into the block. As a general rule any of the aftermarket chromed parts are just made in China crap that doesn't fit right.

+++ Get the real thing and make sure the stick and upper tube are a match.

Also if it leaks that much I'd be willing to bet the lower tube is missing.