@panteradoug posted:Picture? Have three.
This is the bearing/impeller assembly. The seal is on the bottom of the bearing.
I am unclear how this thing is assembled? It looks like it is a hollw barrel with sealed bearings at each end and I see a retaining ring at the top of the top bearing.
It needs to be shortened 1-1/2". If it can't be, then it is an no-can-do.
...I would try: Do this correctly or risk shattering the Impeller.
Push the Bearing 'Cylinder' Down towards the Impeller, so the Shaft protruding from the 'Top', is exposed it's full length. Chuck this section into the lathe and Part-off 1.5". BUT BEFORE CUTTING off, first turn the Shaft Portion (that will now become the Hub Mounting Point) Turn it to size for the Hub to be pressed back on it. I recommend a Heated/Expansion fit of .003"-.005" (Kinda Tight) and watch the hot Hub around those seals! Make sense?? Draw it Up!! Then cut the Casting Down...1.5". If the shaft is too hard for the Parting tool, you'll need to use a 'Friction' saw disk. Back to the Lathe with a Carbide Insert tool to turn to a Shoulder, (if) there was one. Turn 'between centers' with the Impeller End in the Chuck, contacting the shaft only. As always, Mind the Heat and what you are pressing on.
'Machining' over the Internet...that's all I have for You.