Change broken wheel stud on 1887 Mazda?

Answer 1

Jack the car up, take the wheel off. Loosen the top bolt on the back of the brake caliper that holds it to your wheel hub (17mm) and remove the lower one (17mm), then swing it upwards out of the way (with one bolt still attached so it is not a pain to put back on).

Then rotate the brake rotor down so that the broken stud is lined up with the notch in the back of the wheel hub... feel around back there, there is a hold that goes through so that you can pound the stud out.

Then, if there is any thread left, put a lugnut on backwards and hammer it HARD with a mallet until it pops out, then pull it out the back of the hub through the hole. If there aren't any threads, take a hard metal stick (some kind of socket extension works) and put it against the broken stud and hammer it out.

Then, put the new one in from the back side. Put a spacer on it, and put the lugnut on backwards over that (so that the flat side of the lug, instead of the cone side is facing towards the hub) and tighten with a 21mm deep socket on a big wrench all the way until you can't turn any more. Check to see that the threads are OK, and put the wheel on to make sure it is in line with the other studs. It should also be sticking out the same distance.

You're done.