Yet another 7260 yoke question: yoke/strap hole center-to-center dimensions

Yes, all four snap rings are in place. The movement was never side to side. With the old straps the movement was front to back by just a few thou.

Regarding the cross caps sticking out so far, I don't know. I presume the rear driveshaft yoke is original to the car. The snap ring can be in the photos below.
20190505_141853.jpg 20190505_142318.jpg