Whats my yoke?

I'm trying to adapt a driveshaft with 1330 eyes to what I think is a 7260 yoke that was in a smallblock 727.
A 7260 u joint fits it but when I try to source a 1330 to 7260 the part #s I'm coming up with Spicer 5-3246 or cross referenced UJ-457, as well as a Moog 372 and its just not working out. According to Denny a 7290 yoke goes in that transmission which is more in line with those part even though the 7260 joint works on this yoke I'm not sure if it actually is a 7260 yoke.
Any clues?
Thanks

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