I own a B2320 and am missing a top link for my three-point hitch. The OEM number is 6C200-65400, but they are mighty costly. Might anyone know of an aftermarket top link that is certain to fit? It appears that they come in a variety of lengths. Reviews at places like Tractor Supply indicate the top link to be too long for the B class tractors, even though they are advertised as Catagory I. Any ideas on what measurements I should be looking for when buying aftermarket?