8.25 w/ 2/45:1 Woes and Confusion

For sure 2.45 diff housing will not accect any gear swap. Been there. Had to salvage one from local scrapyard off a 75 scamp with 2.76 gears. I bought a Auburn suregrip from Randy's ring & pinion and ordered 3.55 gears from ma mopar ( think now they are obsolete bummer). Hope this clears things up for ya.