Need Some Yoke Education Please

Don't know about the specific u-joint size/application, but there are 2 different splined yokes for an 8 3/4, depending on the pinion - course & fine spline. Course spline are usually aftermarket pinions. I don't think 8.25 and 8.75 yokes interchange. But the strongest yokes are billet steel with u-bolts using solid Spicer u-joints. I used a 7260 combo in my Dart Sport for years without issues. OEM cast yokes can actually spread if severely abused. Forged units are also available. I don't have any OEM strap-type yokes to check the threads on.