Thanks, Ryan!
C4 Auto, and the rear is ....I don't know!
That's the mystery! I think it's from a Bronco, but not sure. The casting is C5AW-4888-A and the date is 5C24 (March 24th, 1965). What has me stumped is that casting. I think it's the small bearing 28 Spline from a Bronco, yet, it's got the 5x4.5 bolt pattern of the car. No tag to confirm. I've searched all over but kind of coming up empty. No filler plug on the side of the 3rd member. Just the backside.
And scrap-exscraption has been completed! I'm hanging onto the original cab for any patch metal that may be needed just in case. After that, that cab and the donor frame and headed to the scrapyard! Time to clean up the shop finally just to get it dirty with primer
Cheers
Dave