I am a 38T guy myself. You may have already figured this out but they were made for JD by Midwest Products Inc. MPI went under during covid Their website only has a landing page left announcing their closing. This may help you in looking for similar models they made. I set a saved search for myself on Ebay and you would be suprised how many NOS items come up for them. Right now there are brushes on there for sale. If I can help with anything dont hesitate to reach out.