8 3/4 green bearing a body axles fit

I had two sets of 8 3/4 a body axles the same size in my 70 duster
took the other set and installed green bearings on them . When i put them in the housing and put the drums back on i notices that the drum was not as far in as it was before, also notices that i had more back space from my rim to my leaf spring by 1/4 '' so i removed the axle and check them with the ones out off the car
they were the same them when i check the bearing to axle flange i saw the green bearing was 1/4 '' longer than the stock taper bearing set up so i marked the axle splines and reinstall bouth sets of axles and found the axles with the green bearings just made it to the end of the spider gears on the posi the stock bearing axles went passed the spider gear . Has any one sean this before ?