If you can grab it with a pair of vice grips or even a pipe wrench and get it out then you could replace it. If that will not work you will have to buy an easy out and use that to remove the stud.
The CV joint stud should be tightened to at least 220 ft/lb.
The ball joints on a Villager are actually easy, just bolt on parts, the only hard part might be getting the stud separated from the knuckle, but if you're replacing them just use a wedge and it should be easy.
Are you asking about a wheel stud or exhaust stud, please clarify
You don't say exactly what stud. If it's a wheel stud, the old one can be pounded out, and a new one pulled into place simply by tightening the lug nut on it.
10mm x 1.5
There should be a stud (not a bolt) threaded in to the head and the stud should have a thread sealant applied to the threads.
To change a wheel stud on a Mercury Mystique, first, safely lift the vehicle and remove the wheel. Next, remove the brake caliper and rotor to access the hub assembly. Use a hammer to gently drive out the damaged stud from the back, then insert the new stud from the front, securing it in place with a nut. Reassemble the rotor, caliper, and wheel before lowering the vehicle back to the ground.
The nut should be a 15mm, the stud, I'm not sure.
You can purchase a Haynes Manual and it will help you with the exhaust and much more.
Find where the exhaust bolts up to the motor aka the exhaust manifold and follow it about a foot towards the back of the carand you'll see a stud sensor with an electrical connector threaded into the exhaust right before the catalytic converter on both sides of the exhaust and one right after the catalytic converter on each side ,so 4 in total.Hope this Helps
The noun 'stud' is used as a collective noun for a stud of horses, a stud of mares, or a stud of poker players.
Stud as in a normal earing stud? Just grab the butterfly clip and pull the stud out. Stud as in a lip stud? Firmly grasp the flat back and twist the end off.