Thanks George. Called Gary at NOS Parts Source a couple of days ago. He didn't have #3652342 but had the earlier #3656862 which he claims is interchangeable. Specs in the '41 Master Parts axle shaft chart look the same so I took a chance and bought it. Not sure what the difference was but per that axle chart it might have been a difference in the length of the bearing journal. I bought it cuz I'm desperate and you're right, his price was high! Hope it works.
