JD makes a foundry bucket, 66" for their skid steers. IMHO, it is about perfect in size for the 3720. Even if your JD does not sell skid steers, they are allowed to order buckets. HD construction, height and depth about the same as standard bucket. Price is considerably cheaper than the 72" bucket JD has for their CUT and heavier made. Dimensions are on JD website under construciton. The bucket will be black instead of JD green. I almost bought one but instead bought a Woods bucket that the dealer already had in stock. I had to cut out the rear slots in the bucket of the Woods bucket slightly wider to make it fit on the Jd skid steer carrier attachment.