From my experience, buy a loewen adjustable as they have nylon bushes on the louvre wires - JD doesn't. Adjustable is definatly the way to go, especially if you have small grains in your harvest mix such as canola.
We have a lowen on the way. If anyone else wants one better get one from current stock. Since JD bought controlling interest many of the competing lowen parts for JD are history. looks like Deere is eliminating the competition. Not gonna be a good thing for our parts prices. Can you spell "monopoly"IJ John
I believe A and I Products who bought the loewen company continue to supply the loewen chaffers - I believe I saw this on the A and I website. aiproducts.com I think is the address.