whirlpool duet inner basket shaft size

[shaw076]

Model Number: GHW9150PW0
Brand: Other
Age: 6-10 years

have a broken shaft on the basket,sounds simple enough until i recieved the updated cross referenced part from an original 8182232 to a W10250573 that has a larger shaft & won't fit the rear housing bearings . does whirlpool make a replacement bearing that will fit the rear tub housing & the updated basket shaft or do i need to get a new assembly ?