A833 /904 7290 Slip Yoke
The 904 is small-7260 and the 66 A Body A833 uses the small 904 slip yoke. All other A833's and the 727's use a larger slip yoke, can be 7260 or 7290. Mopar Performance used to offer a 7290 slip yoke for the 904, and I think they were used on some Dodge Dakota's