100% correct.
It is 6 inches inside to the next bushing/seal. Nothing in-between. It's just stuck in open tube area with the drive-shaft in the center.

Oops sorry: it's in the tube 2-1/2 Inches..

Last edited by Shaffer's1950; 05/27/2026 12:45 AM. Reason: Add dimension

1950 Chevy 3100