ball joint help

[jp-n-mallory71]

i bought upper and lower ball joints from oriellys they they weren't the moog brand .when i went to put the stock spindel on i couldn't get to go all the way in on both top and bottom there wasn't but 2 or 3 threads sticking through the spindel i put on the nut and tighted on but still wouldn't go down. i searched old threads where they had almost the same problem on some aftermarket spindels they ground down the nut but i need to go down a lot more. has any body had this problem if so whats the fix

THANKS JOHNNY