Broken wheel bolt

you need to go to auto parts plqse and purchase some liquid wrench and spray down all rusty bolts that you need to replace.let it sit for a while so it can penetrate. take your old broken bolt with you and purchase a drill tap that you can drill out the bolts .this is the same process you use when brake off head bolt.

You may not-- if there isn't clearance for a new stud

May have to change Wheel Hub Bearing Assy

That's going to be a $300.00 mistake

you need to remove wheel brake caliper & caliper bracket. remove brake rotor . you will be at the hub bearing now. look on back of knucke there will be 4 bolts. remove bolts the tap on flang to pop out bearing, if truck has abs make sure you un plug sensor wire plug will be under rear part of wheel well

A Sunfire is front wheel drive, so there should not be a rear axle.
There is a rear strut, the hub and bearing is bolted to the trailing arm and strut. The tire and wheel bolt to the hub.
I would get two estimates for repairs before making a decision. It could have under-body damage too.

Light Duty Models

1. Raise the vehicle so that the wheel to be worked on is clear of the floor and install jackstands under the vehicle.
   
2. Remove the wheel. Remove the three retaining nuts and remove the brake drum. It may be necessary to back off the brake shoe adjustment in order to remove the brake drum. This is because the drum might be grooved or worn from being in service for an extended period of time.
   
3. Before installing a new brake drum, be sure to remove any protective coating with brake cleaner or a suitable fast-drying degreaser.
   
4. Install the brake drum in the reverse order of removal and adjust the brakes.
   

Heavy Duty

1. Raise the vehicle and install jackstands.
   
2. Remove the wheel. Loosen the rear brake shoe adjustment.
   
3. Remove the rear axle retaining bolts and lockwashers, axle shaft, and gasket.
   
4. Remove the wheel bearing locknut, lockwasher, and adjusting nut.
   
5. Remove the hub and drum assembly from the axle.
   
6. Remove the brake drum-to-hub retaining screws, bolts or bolts and nut. Remove the brake drum from the hub.
   

To install:

1. Place the drum on the hub and attach it to the hub with the attaching nuts and bolts.
   
2. Place the hub and drum assembly on the axle and start the adjusting nut.
   
3. Adjust the wheel bearing nut and install the wheel bearing lockwasher and locknut.
   
4. Install the axle shaft with a new gasket and install the axle retaining bolts and lockwashers.
   
5. Install the wheel and adjust the brake shoes. Remove the jackstands and lower the vehicle.
   

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Jack up the axle and secure it. Remove the rim and tire. Remove the caliper. Remove the manual hub cover (the part that engages the hub) by removing the small Allen head bolts.Remove the big snap ring/"C" ring along the outer edge. Screw 2 of the Allen head locking hub bolts back in and use them to pull the lock out. Next is a large nut that has four indentations in it. There's a special socket 4x4 socket available for around $15 that fits right in there. Remove that nut and the whole rotor and hub will slide off. Because the socket doesn't scar it like tapping it around with a small hammer and blunt chisel.

The 4 Bolts that Hold the HUB in Also Hold the Backing Plate
Hub Replacement - Rear (Front Wheel Drive/Drum)

Removal Procedure

1. Raise and support the vehicle.
2. Remove the tire and wheel.
3. Remove the brake drum.
   1. Remove and DISCARD the wheel bearing/hub bolts.
   2. Remove the wheel bearing/hub.
   3. Disconnect the wheel speed sensor electrical connector (2).Installation Procedure
   4. Connect the wheel speed sensor electrical connector (2).
      1. Install the wheel bearing/hub. Caution: These fasteners MUST be replaced with new fasteners anytime they become loose or are removed. Failure to replace these fasteners after they become loose or are removed may cause loss of vehicle control and personal injury. Notice: Refer to Fastener Notice in Service Precautions.
      2. Install the NEW wheel bearing/hub bolts.
      • Tighten the NEW wheel bearing/hub bolts to 80 Nm (59 lb ft) .
      1. Install the brake drum.
      2. Install the tire and wheel.
      3. Lower the vehicle.

Jack the vehicle up and support with jack stands.Chock rear wheels.Disconnect positive battery lead.Disconnect all wires attached to starter motor solenoid.Remove starter supporting bolts.Pay attention to the position of the shims as you remove the bolts.Replace with working starter and attached electrical wires.Connect battery

I'll try to help you. If you are having trouble with 3 out of 5 studs on one wheel you may want to go to an autoparts store or Salvage yard to look at the whole hub. Usually a press is used to remove the bolts so you would be taking off the hub anyway. When you pay for 3 bolts and labor you may be better off in a Salvage yard or parts place for a different hub. The rear hub on front wheel drive cars is like a trailer axle. Much simpler to remove mounting bolts and press in new bolt. But if rear has differential(rear wheel drive) it has an axle shaft. Would be easier to grind and drill out broken stud on car. You can draw new bolt into place by placing bolt through a socket and use the wheel nut to draw the bolt into the hub.

Yes you can replace the broken wheel stud. The wheel studs are pressed into place, and a vise will work to press it out, and in. You will have to remove the wheel hub, and then use a deep well socket and a bolt or something smaller than the actual stud to remove it with a vise. To replace it, you will need to use the deep well socket on the thread side of the stud, and press the new one in with the vise.

I hope this helps you, and I wish you luck with your repair.