My book lists a Y series 410. I think it was similar to the 424 series that was made for the US government. It appears to be a 370 series front clip with 400 series axles. I have never seen a 410 series, but here is the listing in the GMC master parts book.
Edit Jan 2024 - the link provided to an image hosting site did not work. But that GMC master parts book should be out there somewhere on the Net.
Last edited by Peggy M; 01/06/2024 6:14 PM.