Review on 🛠️ Efficient OTC 7937 Tool for GM Transmission Oil Cooler Line Disconnect by Rory Kelley

The 1" product worked great for what I wanted to remove the coolant return line from the transmission on my 2000 Pontiac Montana Van. The line going there has a straight line about 4 to 5 inches on the fitting so it was easy to use. This can be difficult in a situation where the line has a sharp bend near the fitting, e.g. B. on a radiator. Just note that you will need about 1-1/4" straight tubing to use this item. It was a little difficult to get through the line, but once it was on it worked like a charm.