Trying to remove wheel stud rear do I have to remove disc if so do I remove large nut

Look inside were the axle came out and you will see a large nut that has a lock tab on one of the nut flats. You tap that lock tab away from the flat with a small chisel or a large screwdriver. That will let you to be able to turn that nut and remove it and the tab washer behind it. Then wriggle the hub and a bearing will come out, then you should be able to pull on the hub and it will come of.

strip it down to your hub the hub holds the studs .it is a push pull fit .but an old nut on it.then hit the top of it .it when then push in.remove the nut. push in the new stud from the rear of the hub.put a larger nut on top of stud ,then your wheel nut to pull the stud into the hub.then remove the wheel nut .then refit the parts taken off.and fit your wheel.

Unfortunately, removing the hub will damage the hub bearing and ABS tone ring as they are pressed together. There are aftermarket studs that are able to slip into the empty stud hole but you have to modify the back of the stud to clear the tone ring. Using a brass drift and a dead blow mallet, strike the end of the stud to push it back in till it clears the splined area. You may have to shorten the broken stud with a cutting tool to get it out past the tone ring. Insert the new stud into the hub and using a half inch washer and lug nut, tighten the lug nut with an impact wrench till it seats on the back side of the hub. The lug nut must be a standard lug nut--- no threaded cap style or chrome style will work as the lug nut is installed BACKWARDS to avoid damaging the chamfered end.

I have done this for similar models. I did not remove the hub. Once you have the broken stud out, just rotate the hub to find a spot where you can insert the stud from behind the hub, (carefully so you dont damage the threads and/or splines) making sure the splines from the stud line up with the splines in the hub. When I got it in snug, I still had to fill up the stud with flat washers until there is only about 3/4 of an inch of stud showing and install the nut (backwards ... flat side of nut to the washers!!) onto the stud. Then tighten down the nut until the stud is completely seated in the hole, no gap at the back between the stud end and the hub. Remove nut and washers.

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Go to the auto parts store and borrow a nutcracker. Attach the nutcracker to the stuck nut. Tighten the nutcracker with a rachet wrench until the cracks completely in half. Now you can remove the wheel. Buy a new wheel stud and lug nut. Your lug nut will be pressed into a metal piece. Remove this piece and either 1) support the metal piece, put a good amount of penetrating oil on both sides of the bad lug nut and tap firmly with a large hammer. Let this sit for 5-10 minutes so that the oil can penetrate the stud. Now pound out the old lug nut with a large hammer. If it will not budge, then you can try heating the stud with a torch until it is quite hot and then hit the stud progressivly harder until it comes out. Now insert the new stud and pound it in until it stops moving. Last, before you reassemble, put the lug not on the new stud and tighten it real good to make sure that the stud is comletely seated. 2) the other option is to take the metal piece to the parts store and let them remove the stud and press a new stud for you.

Rear Suspension - Rear Wheel Bearing Fusion 2002.75 (06/2002-)

-Removal and Installation

Special Tool(s)

Installer, Differential Bearing
205-062

Installer, Input Shaft Seal
307-210 (17-041)


General Equipment
Soft faced hammerWooden block

Removal

CAUTION: The brake drum and hub assembly removal in this procedure is for installing a new wheel bearing, not for access to brake system components.

-All vehicles

Remove the dust cap.
Remove the wheel and tire.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

-Vehicles with rear drum brakes
Release the parking brake.
Remove the brake drum and hub assembly.
Remove and discard the wheel hub retaining nut.


-Vehicles with rear disc brakes
Remove the brake disc.
For additional information, refer to in this section.

Remove the wheel hub.
Remove and discard the wheel hub retaining nut.


-All vehicles

Remove and discard the wheel speed sensor ring (brake disc shown).
Remove the circlip (brake disc shown).
Using the special tool, remove and discard the wheel bearing (brake disc shown).

-Installation

-All vehicles

CAUTION: Support the wheel hub assembly on the wheel mounting face and not on the wheel nut studs.

Using the special tool, install the new wheel bearing (brake disc shown).

Install the circlip (brake disc shown).

CAUTIONS:

Make sure the wheel speed sensor ring is not knocked, damaged and kept free from metal fragments.

Protect the face of the wheel speed sensor ring with a non-ferrous flat block to prevent damage.

Make sure the wheel hub or brake drum is adequately supported and do not allow it to rest on the wheel studs..

Make sure the wheel speed sensor ring is pressed on slowly and squarely until fully seated.

Do not exceed a maximum load of 10 kN.

Using the special tool, install a new wheel speed sensor ring (brake disc shown).

Vehicles with rear drum brakes

CAUTIONS:

Avoid impact on the wheel speed sensor ring.

Make sure the wheel speed sensor ring is clean.

Avoid any contact between the wheel speed sensor ring and a magnetic surface.

Rotate the wheel hub assembly 10 times counter-clockwise when tightening the wheel hub retaining nut to prevent damage to the wheel bearing.

NOTE: Install a new wheel hub retaining nut.

Install the brake drum and hub assembly.
Apply the parking brake.

-Vehicles with rear disc brakes


CAUTIONS:

Avoid impact on the wheel speed sensor ring.

Make sure the wheel speed sensor ring is clean.

Avoid any contact between the wheel speed sensor ring and a magnetic surface.

Rotate the wheel hub assembly 10 times counter-clockwise when tightening the wheel hub retaining nut to prevent damage to the wheel bearing.

NOTE: Install a new wheel hub retaining nut.

Install the wheel hub retaining nut.
Install the brake disc.
For additional information, refer to in this section.


-All vehicles
Install the wheel and tire.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

NOTE: If the dust cap is damaged a new dust cap must be installed.

Using a soft faced hammer and a wooden block, install the dust cap.


There is no real torque settings for the rear wheels, except to say, do not over tighten or you will stretch the lugs and the will loosen over time.

Remove tire and wheel, remove caliper and brake rotor. DO NOT apply the brakes while the caliper is loose. Hit stud you want to replace hard with a LARGE HEAVY hammer to drive it out towards vehicle. DO NOT use a light hammer. It will distort the stud and possibly mushroom the end making it very difficult to remove. Once the stud is loose, you may or may not have enough room to get it out of the hole. You may need to pull the hub loose from the rear suspension to gain more room. Remove the stud. Place new stud in hole. Put a stack of washers over the stud, grease the threads, and using a new FLAT nut with the same threads as the lug nut, tighten until the stud is pulled all the way into the hub. Remove the flat nut, reattach the hub assembly (if you needed to take it loose) and reinstall the brakes.

As far as I can determine, your Elantra has standard rear disc brakes.
The lugs should be attached to the hub, which is attached to the axle. The Disc or Rotor (they're one and the same) slip onto the hub. Oftentimes the disc will seize on the hub from rust. You need to spray the center hole, where the disc goes over the hub, with spray penetrating oil. Also spray the lug stud holes. Then take a (dead blow )hammer and hit the disc around its perimeter. It should then come loose.
The broken stud can then be taken out by hitting the front of the stud with a hammer. You may want to spray the back of the stud where it seats on the hub before taking the hammer to it. Place the new stud through the rear and make sure it's seated correctly.
Clean all parts with brake parts cleaner. The lug studs should not have any lubrication on them.
You have to re-set that "large castle nut" that was removed to its proper Preload Torque. I do not know that spec, but you need to find it out, and how it's done.
Suggest you purchase a Repair Manual for your vehicle(s). It really is the best tool you can get.

Remove: wheel, brake caliper & rotor. Drive out the remaining stub with a hammer and punch. Insert a new stud and pull it into place by tightening the lug nut. Before running out of threads, remove the nut, insert a stack of washers or a large nut which slips over the threads without contacting them, tighten the lug nut to seat the stud.

here is procedure

Section 04-01: Suspension and Wheel Hubs, Front 1996 Taurus, Sable Workshop Manual
REMOVAL AND INSTALLATION Wheel Hub Bolt Removal

1. Raise vehicle on hoist.
   

1. Remove wheel and tire assembly. Refer to Section 04-04 .
   

1. Remove disc brake caliper (2B120), and front disc brake rotor (1125). Refer to Section 06-03 .
   

Brake Shoe and Lining Removal

1. Remove brake master cylinder filler cap (2162). Check fluid level in brake master cylinder reservoir (2K478). Remove brake fluid until brake master cylinder reservoir is half full. Discard removed fluid.
   

1. Raise vehicle on hoist. Refer to Section 00-02 .
   

1. Remove wheel and tire assembly from front disc brake rotor mounting face. Use care to avoid damage or interference with disc brake caliper (2B120), front disc brake rotor shield (2K004) or front wheel knuckle (3K185).
   

1. Remove rear brake pin retainers (2N386). ( I think it is a T 40 torx bit you need)
   

1. NOTE: It is not necessary to disconnect hydraulic connections.
   
   Lift disc brake caliper from front disc brake caliper anchor plate (2B292) and front disc brake rotor (1125). Do not pry directly against metal caliper piston or damage will occur.
   

1. Position disc brake caliper out of the way and support with wire to avoid damaging the disc brake caliper and front brake hose (2078).
   

1. Remove outer brake shoe and lining (2001) assembly from front disc brake caliper anchor plate.
   

1. Remove inner brake shoe and lining assembly.
   

1. Position lug bolt (1107) to clear front wheel knuckle (3K185).
   

1. Remove lug bolt from wheel hub (1104).
   
   
   
   

Installation

1. Install lug bolt into wheel hub.
   

1. Using a lug nut (1012), seat wheel hub bolt into wheel hub.
   

1. Install front disc brake rotor and disc brake caliper. Refer to Section 06-03 .
   

1. Install wheel and tire assembly. Tighten lug nut to 115-142Nm (85-104 lb-ft).