My left back tire of a 1991 Lincoln towncar fell off & i was trying to replace rear lugnuts studs

remove tire...if it has disc brakes remove caliper/pads and rotor...if it has a drum break remove drum..Now take a punch and hammer and hit the center of the lugnut stud untill it pops out the back.put the new one in and get it tight with the lugnut.Replace brakes and tire and tighten that lugnut until it stops.Then check it in 500 miles

Could be a multitude of issues, but we'll start with the easy possibilities first. --------- Check all of your tires. You may have a broken belt in one (or both) front tires and that can lead to shaking. If you can, take the tires off and look at each tire straight on, as if you were looking through the tread. Roll the tire slowly away from you and watch to see if the tread is off-center, or if the tire has a bulge on one sidewall. If so, that would be your problem. Just get new tires.

Next, check all of your lug nuts to make sure they are all there and all tight.(Front and back). Also check to see if any of your holes where the studs come through the rims aren't 'oval', as this is a sign of loose lugnuts, will cause shaking, not to mention, is extremely unsafe. If any holes are oval, you will need to replace the rims, and also possibly the studs as the studs have had excessive uneven torque on them, leading them to fail and you could loose a tire while driving. Good luck!

The rotor is bolted to the wheel hub from the backside. To get at those bolts you will need to remove the CV axle from the wheel hub. If you've never removed a CV axle before I suggest getting a repair manual for the vehicle (from an auto-parts store) or take it to a mechanic that you trust.

TAKE VECHICLE TO SEARS AUTO CENTER OR ANY TIRE WHEELS BRAKE ALIGNMENT SHOP THEY CAN PRESS OUT THE STUD WITH OUT DAMAGING WHEEL BEARING.AND PRESS YOU IN A NEW LUG NUT STUD.PROBABLY CHARGE YOU $25.00 DOLLARS.

Replace all the studs on that wheel and it's twin on the other side. To do this, you have to turn the wheel to where the stud can come out from the inside, and use a hammer (or hammer and punch for the broken ones) to push them out the back of the wheel. You'll have to turn the wheel for each one. To put the new ones in, slide it into the hole that's been vacated, and use a lugnut to pull it in. Flip the lugnut so the the cone shaped end is out (upside down), and tighten it until it pulls the stud all the way on. Take the nut off, turn the hub, and do the next one in the same way. Make sure that you do the other side too, because it's been subjected to similar loads, and is likely ready to fail as well. Mount the tires, drive the car around a little, taking a few curves, but lightly. Stop, and retorque the lugnuts. Take it on another drive, but harder in the curves, and retorque the lugnuts. You are then finished. Just a note: whenever you retorque the lugnuts, loosen first, then tighten. This keeps you from overtightening them.

Perhaps the rear height sensor isnt secured or plugged. Check the ball stud mounting bracket to be sure its tight as well.

Remove the tire, and the brake drum. With a suitable punch, and safety glasses on, drive the broken stud towards the center of the car. The stud will push away from you, thru the hub, and fall out. Get the new stud, and poke it thru the now existing hole on the hub. Place a flat washer over the stud, and thread a lug nut onto the stud, and tighten the lugnut until the stud is pulled all of the way into the hub. Remove the lug nut and the washer, and refite the drum and the wheel.

Easy. Take wheel and tire off, and remove the brake drum, if it has drum brakes. With a hammer, hit the broken stud until it pops out. Slide the new stud into the hole, and, using some thick washers, screw the lugnut onto the new stud, over the washers. Tighten it until the stud is pulled all of the way in. Easier done with an air wrench, however.

lugnuts and wheel studs
you will have to pull the barke drum off and knock the studs out and should be able to get new ones in and use a nut and spacer to pull the new studs tight