It surprised me a little they would not produce extra adapters, as the other oem,s have been raping the consumer on the cost for wrenches, weights, adapters, etc. for years.
Seems like a primitive adapter, being square, and allowing for only 4 adjustments.
Why I am not surprised is oem is still the anti-fit model, even with the "adjustable" adapters, oem,s want you to buy the stock shaft set up, where they take in the most $.