This is our Rockshaft Housing Cover Gasket for John Deere model 720/730. This gasket is no longer available from Deere. Our gasket is constructed of modern rubber blend gasket material. You can see the fit of this large gasket on an actual cover in the pictures. Get one of these for your next project to save time and money because of the time spent cutting one out by hand and wasting so much unused material. Check out our other parts we make for these great tractors.