74 Duster, resto mod 6.4 front end rebuild questions

Same here i bought a new set when they arrived i found the ball joint was so loose they spot welded it in first bump they would have shot out ended up sand blasting the old ones.
That thread look's about normal ,when i pressed the new rbber bushes in it took about 1 ton on the press.If they are too loose they will turn in the arm also make sure the arm is loaded before tightening the adjuster bolts & the lower main support pin