Ordered some knobs for the control levers on my Jet Star. They are listed on E-Bay for Allis Chalmers, but looked like they might fit the Jet Star. Asked the fellow to check the slot dimensions and the measurements seemed like they would work. Got them Friday and they work perfectly and for half the price of the MM knobs. The seller also included a flyer/pamphlet with MM parts that he has available. Has a lot of items and the prices aren't horrible. If you want to check it out he is situated in Doniphan, NE. It's called Wagner Ag Sales. His E-Mail is: [email protected]. I haven't seen this one before, but then I lead a "sheltered" life too.